Briggs and stratton head bolt torque specs

I go offline at 4 pm CST. M-F. Weekend 2-3 pm CST for the day. Bolt torque is 84-92 in lbs. I hope this helps you. Wayne. Ask Your Own Agriculture and Farm Equipment Question. Wayne. 19,185 Satisfied Customers.

Briggs and stratton head bolt torque specs.

SOURCE: Head bolt torque specs needed for 96 tbird 3.8. Head bolts are torque to yeild so you MUST use new bolts. Tighten cylinder head retaining bolts in numerical sequence in three steps as follows: 20 Nm (15 lb-ft). 40 Nm (30 lb-ft). 50 Nm (37 lb-ft) Loosen retaining bolts one at a time two to three revolutions and retighten as …

The Briggs and Stratton 28M707 is a 465 cc (28.38 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 28M707 engine has an L-head (side valve) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system.Dec 16, 2015 · Past 30 Days: 513. All Time: 41,131. @knuckelhead the 400000 series should be a Intek V-twin 1. Place cylinder head gasket over alignment dowels on cylinder block. 2. Install cylinder head assembly. Torque head bolts in sequence shown to 220 in. lbs. (25 Nm). Here is the diagram to show the pattern - Briggs and Stratton motor. The Briggs and Stratton 31P777 is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 31P777 engine has an OHV (overhead) design and a vertical PTO shaft. This engine is equipped with float type carburetor, pulse type fuel pump and an electronic ignition ...Lightly oil the bolt threads before installing them. torque in 2 steps 12ft.lbs. then 16ft.lbs. Tap the head bolts with a hammer to remove preload between steps. The simplicity chart is a rule of thumb for most bolts but the spec of MFG should be followed Briggs specs are probably taking into consideration heat expansion.24 Oct 2008 ... Torquing the head bolts of a law mower is an important part of maintenance. Get expert tips and advice on lawn mower repair & maintenance in ... Steps to Torque the Head Bolts. To properly torque the head bolts on your 18 HP Briggs and Stratton engine, follow these steps: Step 1: Start by ensuring that the engine is turned off and cool to the touch. This will help prevent any accidental injuries and ensure accurate torque readings. Step 2: Briggs and Stratton is a small engine and machine manufacturer that makes equipment and sells parts for a variety of residential and commercial applications. OEM stands for origina...

Steps to Torque the Head Bolts. To properly torque the head bolts on your 18 HP Briggs and Stratton engine, follow these steps: Step 1: Start by ensuring that the engine is turned off and cool to the touch. This will help prevent any accidental injuries and ensure accurate torque readings. Step 2:Steps to Torque the Head Bolts. To properly torque the head bolts on your 19 hp Briggs and Stratton engine, follow these steps: 1. Start by cleaning the threads of the head bolts and the bolt holes in the engine block. This will ensure proper engagement and accurate torque readings. 2. Apply a small amount of engine oil or assembly lubricant to ...The Briggs and Stratton 311707 Intek is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 311707 engine has an OHV (overhead) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system.Oct 23, 2015 · Showing the process of installing a new head gasket on flat head small engines. Special thanks to Dawn for the video idea! Learn the recommended torque specifications and steps for tightening Briggs and Stratton head bolts. Ensure a secure and reliable engine seal.How tight to torque head bolts? Briggs and stratton torque specs chart Briggs stratton. Briggs and stratton torque specs chart. Briggs and stratton torque specs chartCommon specifications for briggs & stratton all single cylinder l head Rod bolt briggs stratton connecting torques outdoorking forum 5hp repair installation1919 …

To find basic small engine specs like torque, fuel & oil type, filter or cylinder info, check out specific product pages for your snow blower , lawn mower , pressure washer , or portable generator. The complete source of specification information would be your engine's Repair Manual (Lookup Repair Manual by Model Number ).Wood decks and stairs are susceptible to rot and water damage. Use lag bolts to raise deck posts and stair risers above footings to prevent water from seeping into the wood. Wood d...Use these Bolts!So we got a Tracker-8 Snowblower in the shop, it needs a new head gasket, so I'm installing new head bolts to go with it.This particular mode...To find basic small engine specs like torque, fuel & oil type, filter or cylinder info, check out specific product pages for your snow blower , lawn mower , pressure washer , or portable generator. The complete source of specification information would be your engine's Repair Manual (Lookup Repair Manual by Model Number ).How tight to torque head bolts? Briggs and stratton torque specs chart Briggs stratton. Briggs and stratton torque specs chart. Briggs and stratton torque specs chartCommon specifications for briggs & stratton all single cylinder l head Rod bolt briggs stratton connecting torques outdoorking forum 5hp repair installation1919 …

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10,274. Nov 26, 2022 / Torque specs 21m314 snowblower engine. #2. IF a specific torque is listed used it vs the basic torque value. like the sump (side cover) is 210 in/lb vs the basic 100 in/lbs. Basic torques.For Briggs & Stratton Discount Parts Call 606-678-9623 or 606-561-4983. Bore Model 290000 & 303000 Model 350000 & 351000 Model 380000. 68.0 - 68.03mm (2.677"-2.678") 72.0 - 72.03mm (2.835"-2.836") 75.50 - 75.52mm (2.9724"-2.973") 68.10mm (2.681") 72.16mm (2.839") 75.59mm (2.976") Out of round: Main Bearing (Before 97050110) …General Briggs & Stratton Repair Information: Wiring Explained: Engine Repair Manual: Briggs Alternator Conversion Guide: Briggs Shortblocks: English Common Specs for Briggs Engines: Metric Common Specs for Briggs Engines: Specs for L-Head Single Cylinder Engines: Specs for Single Cylinder Briggs (except Intek) Specs for Briggs Intek EnginesBriggs and Stratton is a small engine and machine manufacturer that makes equipment and sells parts for a variety of residential and commercial applications. OEM stands for origina...Briggs and Stratton 31C707 Engine Specs: Horsepower and torque, Carburetor adjustment, Valve clearance, Oil type and capacity, Service data and tightening torqueBriggs and stratton 21 hp model 331877 head bolt torque spec…. Hi, my name is***** will be assisting you. You will want to torque the head bolts to 225 in. lbs. using a crisscross pattern. I normally start with the top right corner and work around the head going from there to the bottom left and then moving over one bolt and across the head ...

1. Refer to the torque specification chart provided earlier to determine the appropriate torque value for your specific Briggs Intek engine model. 2. Attach the torque wrench to the socket that fits the head bolts. 3. Starting from the center bolt, tighten each head bolt in a crisscross pattern. Apply steady pressure until the torque wrench ... Nov 7, 2017 · 14355 posts · Joined 2006. #2 · Nov 7, 2017. Well I can send you a Service Manual with most of that in it but the sump will require a special retro fit gasket kit and it will include the new torque specks for it. IF you should happen to have an original type gasket the last torque was 220 inch lbs. For Service Manual - put in proper format ... fastener specifications description wrench/socket size torque alternator………………………… 1/4"…………………………..……. 20 in. lbs. (2.2nm) To properly torque the cylinder head bolts on a 21 hp Briggs and Stratton engine, it is important to follow the manufacturer’s specifications. The table below provides the …Before 97011300 ** After 97011200. Horizontal Threaded Crankshaft − .05 − .20. Horizontal Threaded Crankshaft − .05 − .20. Horizontal Threaded Crankshaft − .05 − .20. Both Rod Screws Same Size: Torque to 21Nm. ** Torque Small Rod Screw First: 18 Nm. Torque Large Rod Screw Second: 29 Nm.Step-by-Step Guide for Head Bolt Torque Sequence. Follow these steps to correctly torque the head bolts on your Briggs and Stratton 17.5 HP engine: Start by tightening bolt number 1 to the specified torque of 220 ft. lbs. (298 Nm). Proceed to bolt number 2 and tighten it to 190 ft. lbs. (258 Nm). Continue with bolt number 3, torquing it to 210 ...To properly torque the cylinder head bolts on a 21 hp Briggs and Stratton engine, it is important to follow the manufacturer’s specifications. The table below provides the recommended torque values in both foot-pounds (ft. lbs.) and Newton meters (Nm) for the cylinder head bolts:Walt 2002. 14355 posts · Joined 2006. #2 · Oct 17, 2013. I can send you a Service Manual IF you like, address below, put in proper format and remind me engine model number and what you want. Head bolt torque - "Torque bolts in the sequence shown, Fig. 20, to. 165 in. lbs. (19 Nm)." Torque in diagonal pattern. Walt Conner.For All Spares And Service Items For Your Mowers, I Use And Recommend This Website https://tidd.ly/47Sy8oTIn this video I share all the necessary torque spec...Use these Bolts!So we got a Tracker-8 Snowblower in the shop, it needs a new head gasket, so I'm installing new head bolts to go with it.This particular mode...

2 posts · Joined 2006. #1 · Dec 2, 2006. Having broken off one head bolt on my 11 hp ride on mower motor I think I may need to know the torque setting for them. It's model 253707 Type 0160 02 Code 84061810. Can anyone help me with the manual or even just the torque setting and tightening sequence. Thanks for listening. [email protected].

From there, you can determine the cylinder head torque specifications right down to the valve clearance for intake and exhaust if needed. Head bolt torque specs are among the most common, and a few need to know the main bearing torque for things like the Briggs & Stratton Intek 311777.Briggs torque stratton specs chart ohv fixya torques solved 22hpMtd mb3202 41ar322g077 41ar322g077 mb3202 parts diagram for torque Briggs and stratton torque specs chartBriggs and stratton 17.5 hp engine torque specs.The Briggs and Stratton 31P777 is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 31P777 engine has an OHV (overhead) design and a vertical PTO shaft. This engine is equipped with float type carburetor, pulse type fuel pump and an electronic ignition ... To properly torque the head bolts on a Briggs and Stratton engine, it is essential to follow a specific sequence. This sequence ensures that the head bolts are tightened evenly, preventing any warping or damage to the engine block. Below is the recommended torque sequence for Briggs and Stratton engines: Step. Torque (ft. lbs.) Torque (Nm) Step 1. COMMON SPECIFICATIONS FOR INTEK V-TWIN OHV ENGINES. MODEL SERIES BORE STROKE DISPLACEMENT. 405777..............2.970" (75.44mm)...... 2.890" …Steps to Torque the Head Bolts. To ensure the proper torque is applied to the head bolts of your 5HP Briggs and Stratton engine, follow these steps: 1. Start by cleaning the threads of the head bolts and the corresponding holes in the engine block to remove any dirt or debris. 2.Briggs and Stratton 31Q777 Engine Specs: Horsepower and torque, Carburetor adjustment, Valve clearance, Oil type and capacity, Service data and tightening torqueFind your replacement engine specifications for your horizontal shaft models here: Model Series 83100 - 5.50 Gross Torque/127cc. Model Series 12T100 - 8.00 Gross Torque/205cc. Model Series 12S400 - 9.00 Gross Torque/205cc. Model Series 15T200 - …

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Jun 1, 2016 · Briggs and stratton 21 hp model 331877 head bolt torque spec…. Hi, my name is***** will be assisting you. You will want to torque the head bolts to 225 in. lbs. using a crisscross pattern. I normally start with the top right corner and work around the head going from there to the bottom left and then moving over one bolt and across the head ... Spec work has long been a point of contention between agencies and clients. Learn what these agency executives think the real problem is. Trusted by business builders worldwide, th...Briggs and Stratton 31P777 Specs: Horsepower and torque, Carburetor adjustment, Valve clearance, Oil type and capacity, Service data and tightening torque TRACTORS LAWN TRACTORSHow tight to torque head bolts? Briggs and stratton torque specs chart Briggs stratton. Briggs and stratton torque specs chart. Briggs and stratton torque specs chartCommon specifications for briggs & stratton all single cylinder l head Rod bolt briggs stratton connecting torques outdoorking forum 5hp repair installation1919 …Briggs and Stratton 310707 engine specifications: power and torque, compression, valve clearance, oil type and capacity, service data and torque specs . Contact us; About us; Facebook; May 3, 2024. Home. Briggs and Stratton. Briggs and Stratton 310707 Briggs and Stratton 310707. The Briggs and Stratton 310707 is a 501 cc (30.6 cu·in) …I've been unable to find the head bolt torque for a briggs 441777-0284-E1 engine, the -0283-E1 is 160 in-lbs. are they the same? Prolly so but jus wonderin' thanks, ol'14355 posts · Joined 2006. #2 · Nov 7, 2017. Well I can send you a Service Manual with most of that in it but the sump will require a special retro fit gasket kit and it will include the new torque specks for it. IF you should happen to have an original type gasket the last torque was 220 inch lbs. For Service Manual - put in proper format ...Briggs and Stratton 331877 Intek Plus Engine. General Technical Data. Briggs and Stratton 331877 Engine Specifications. Engine Model - Briggs and Stratton 331877 Intek Plus Platinum. Engine Type - 4-cycle single cylinder OHV vertical shaft air-cooled gasoline engine. Number of Cylinders - 1. Displacement, cu.in (cc) - 32.93 (540) Step 2: Place the push rod guide on the cylinder head and attach the mounting bolts, using a torque wrench. Coat the rocker arm stud threads with a hardening sealant and install the rocker arm studs, using a socket wrench. Note: Consult your Authorized Briggs & Stratton Dealer for the proper torque settings for the mounting bolts and studs. ….

Torque spec on the rod bolts is 150 inch/pounds, and the top bolt must be torqued FIRST. (The bolt closest to the piston) The head bolts are 220 inch/pounds, and the torque should be laid on in several stages just to be safe. 1) Run a tap and die set into the bolt holes and over the head bolts if there is any doubt of cleanliness.Showing the process of installing a new head gasket on flat head small engines. Special thanks to Dawn for the video idea!4. Apr 10, 2012 / B/S 17.5 I/C OHV Head Torque. #1. Hey guys, John from Mississippi, first post, great looking forum you have here! My dad's sister gave me a Murray that was smoking like crazy and running pretty poorly. Good looking machine, thought it would be a nice one to leave at my mother-in-law's place so I wouldn't have to trailer my ... The complete source of specification information would be your engine's repair manual (Lookup Repair Manual by Model Number ). Knowing your small engine model number also provides basic specifications such as valve settings, bore, stroke, etc. For a general guide, our Replacement Engine Catalog PDF (Large file - 38 MB) contains all of our ... common specifications for all single cylinder ohv engine models except intek models torque specifications valve clearance basic model series oil capacity fl. ozs. (liters) armature air gap inches (mm) flywheel nut ft. lbs. (nm) cylinder head in. lbs. (nm) conn. rod in. lbs. (nm) crankcase cover or sump in. lbs. (nm) intake inches (mm) exhaust inches …What are the torque specs for head bolts on a 14.5 horse power Briggs and stratton? Updated: 4/28/2022. Wiki User. ∙ 14y ago. Best Answer. 185 in/lbs. or 15.5 ft/lbs.A Briggs and Stratton carburetor diagram can be used to overhaul the carburetor. The diagram contains a schematic drawing of every piece contained in the carburetor and labels it u...In this article, we will discuss the head bolt torque specifications for an 18.5 hp Briggs and Stratton engine. Head Bolt Torque Specifications. To ensure the proper functioning of the engine, it is crucial to tighten the head bolts to the recommended torque specifications. The table below provides the head bolt torque specifications for the …Dec 16, 2015 · Past 30 Days: 513. All Time: 41,131. @knuckelhead the 400000 series should be a Intek V-twin 1. Place cylinder head gasket over alignment dowels on cylinder block. 2. Install cylinder head assembly. Torque head bolts in sequence shown to 220 in. lbs. (25 Nm). Here is the diagram to show the pattern - Briggs and Stratton motor. Briggs & Stratton / Intek Cylinder Head Bolt Torque And Correct Sequence. The video below explains the correct torque and torque sequence for Briggs & Stratton motor model #33R877. This motor is also branded as Intek. The information is likely correct for other models but… this is the one I have. While you have the Briggs & Stratton / Intek ... Briggs and stratton head bolt torque specs, Video showing a basic torque pattern and how to torque head bolts using a standard click type torque wrench. And I show where the 3 long head bolts go on cer..., When it comes to assembling and tightening bolts in various applications, using a bolt torque chart is an essential tool. A bolt torque chart provides the recommended torque values..., Spec work has long been a point of contention between agencies and clients. Learn what these agency executives think the real problem is. Trusted by business builders worldwide, th..., Find your engine specifications for your vertical shaft models here: Model Series 9P700 - 5.50 Gross Torque/140cc. Model Series 10T800 - 5.50 Gross Torque/158cc. Model …, Briggs and stratton 21 hp model 331877 head bolt torque spec…. Hi, my name is***** will be assisting you. You will want to torque the head bolts to 225 in. lbs. using a crisscross pattern. I normally start with the top right corner and work around the head going from there to the bottom left and then moving over one bolt and across the head ..., How tight to torque head bolts? Briggs and stratton torque specs chart Briggs stratton. Briggs and stratton torque specs chart. Briggs and stratton torque specs chartCommon specifications for briggs & stratton all single cylinder l head Rod bolt briggs stratton connecting torques outdoorking forum 5hp repair installation1919 …, The Briggs and Stratton 386777 Vanguard is a 627 cc (38.2 cu·in) V-twin air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 386777 engine has an OHV (overhead valve) design and a vertical PTO shaft. This engine is equipped with float type, side-draft carburetor and an electronic ignition ..., needing head torque and pattern sequence for craftsman pressure washer model# 25b-554d099 247.772460 Briggs n Stratton 3.5 h/p sm. engine #10t 802-0711-b1 thank you Reply Mark McEachern says: , What are the torque specs for the B&S mod.331877 type 2371g5 head bolts?, con rod?, crankshaft case?, valve clearance?? Mechanic's Assistant: Do you know the model of your Briggs & Stratton tool or machine? How old is it? It is model331877 and type 2371G5. Mechanic's Assistant: How long has this been going on with your Briggs & Stratton? …, Step 6: Tighten the cylinder head bolts in increments, using a torque wrench. Turn each bolt a few turns, then proceed to the next bolt until each bolt is just snug. Then, for final tightening, proceed in increments of roughly one-third the final torque. Consult your Operator's Manual for final torque specifications. Uneven tightening is likely ..., The Briggs and Stratton 42A707 engine produced 18.1 PS (13.3 kW; 18.0 HP) at 3,600 rpm of maximum output power and 38.6 N·m (3.9 kg·m, 28.4 ft·lb) at 2,600 rpm of peak torque. The Briggs and Stratton 42A707 features: L-head design. Flywheel magneto ignition system. Float type carburetor., What is the torque on a Briggs and Stratton twin cylinder head? 22 HP Twin-V Torque Specs, G-I Head bolt torque is 220 inch-pounds; socket size is 1/2 inch. Intake air horn torque is 45 inch-pounds; socket size is 7/16 inch. Intake manifold-to-cylinder head torque is 80 inch-pounds; socket size is a 3/8 inch., 5 HP Briggs and Stratton Head Bolts Torque. Customer Question. 1995 purchased a Sears 5... 1995 purchased a Sears 5 HP Chipper/Shredder. Briggs Model Number 133412, which has 8 Head Bolts, and no washers. I would like to know what the bolts should be torqued to? Thank you. Submitted: 15 years ago. Category: Small Engine. Show More. …, Briggs and Stratton 350777 engine specifications: power and torque, compression, valve clearance, oil type and capacity, service data and torque specs. Contact us; About us; Facebook; April 19, 2024. Home. Briggs and Stratton. Briggs and Stratton 350777 Briggs and Stratton 350777. The Briggs and Stratton 350777 Vanguard is a 570 cc …, Torque requirement on 19.5hp briggs (model below) Model 31p677-0912-g5 Briggs & Stratton I’m putting the sump (bottom case) back on and want to know the torque I’m supposed to use on the bolts? Should I just use the criss cross pattern and just tighten them tight without torque wrench?, 14355 posts · Joined 2006. #2 · Nov 7, 2017. Well I can send you a Service Manual with most of that in it but the sump will require a special retro fit gasket kit and it will include the new torque specks for it. IF you should happen to have an original type gasket the last torque was 220 inch lbs. For Service Manual - put in proper format ..., Briggs and Stratton 331777 engine specifications: power and torque, compression, valve clearance, oil type and capacity, service data and torque specs . Contact us; About us; Facebook; May 3, 2024. Home. Briggs and Stratton. Briggs and Stratton 331777 Briggs and Stratton 331777. The Briggs and Stratton 331777 Intek is a 540 cc (32.9 …, If you own a Briggs Stratton engine or equipment in Canada, you may have questions about finding the right parts for maintenance or repair. In this article, we will address some co..., Steps to Torque the Head Bolts. To ensure the proper torque is applied to the head bolts of your 5HP Briggs and Stratton engine, follow these steps: 1. Start by cleaning the threads of the head bolts and the corresponding holes in the engine block to remove any dirt or debris. 2. , To find basic small engine specs like torque, fuel & oil type, filter or cylinder info, check out specific product pages for your snow blower , lawn mower, Riding Mower or utility engines. The complete source of …, Briggs torque stratton specs chart ohv fixya torques solved 22hp. Briggs and stratton head bolt torque chartBriggs engine stratton Briggs stratton specs conrod connecting outdoorkingBriggs stratton specs engine chart repair specifications manuals metric common popular models hp manual. Solved: what are the torque specs on intake …, , The Briggs and Stratton 28M707 is a 465 cc (28.38 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 28M707 engine has an L-head (side valve) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system., Briggs & Stratton . Briggs cylinder head bolt torque ... I've been unable to find the head bolt torque for a briggs 441777-0284-E1 engine, the -0283-E1 is 160 in-lbs. are they the same? Prolly so but jus wonderin' thanks, ol' Boudreaux In Eunice La. Lawn Addict. Joined Jul 22, 2017 Threads 21 Messages 2,154. Sep 11, 2017 / Briggs …, If you have more questions or need help determining your replacement engines, check out our engine replacement assistance section below. Find your engine specifications for your vertical shaft models here: Model Series 9P700 - 5.50 Gross Torque/140cc. Model Series 10T800 - 5.50 Gross Torque/158cc., Steps to Torque the Head Bolts. To properly torque the head bolts on your 19 hp Briggs and Stratton engine, follow these steps: 1. Start by cleaning the threads of the head bolts and the bolt holes in the engine block. This will ensure proper engagement and accurate torque readings. 2. Apply a small amount of engine oil or assembly lubricant to ..., Working on a Briggs and Stratton. Model: 290447 Type: 0406-01 Code: 92062447. What is the valve clearance and torque spec for the nuts and bolts when finished adjusting.Thanks, Justin Model: 290447 Type: 0406-01 Code: 92062447., Try googling around, there should be a Briggs & Stratton 31P677 manual available online. 2012 2720 -- 200CX Loader -- 54" Quick Attach Snow Blower -- Frontier LR5060 Rake -- Land Pride RB1660 Blade (Hydraulic Angle) -- Artillian 42" Forks -- Ken's BOGH -- 2013 X500/48 for mowing duties -- 2023 X350/42 YUT., Quick & Simple!In today's video, I'm going over some lawn mowers that I'm getting ready to sell.Torquing the head bolts to the manufacturers spec is importan..., Steps for Proper Head Bolt Torque. To ensure the correct torque is applied to the head bolts of your 17 HP Briggs and Stratton engine, follow these steps: 1. Clean the threads: Before installing the head bolts, make sure the threads in the engine block are clean and free from any debris or oil. This will help achieve accurate torque readings. 2. , 14355 posts · Joined 2006. #2 · Nov 7, 2017. Well I can send you a Service Manual with most of that in it but the sump will require a special retro fit gasket kit and it will include the new torque specks for it. IF you should happen to have an original type gasket the last torque was 220 inch lbs. For Service Manual - put in proper format ..., Received 146 Upvotes on 135 Posts. Hello Rhodes! If it is an aluminum cylinder, the torque is 165 in. lbs. If it is a cast iron cylinder, the torque is 190 in. lbs. This is for a model 19xxxx model engine, which is an 8hp. …, Jun 1, 2016 · Briggs and stratton 21 hp model 331877 head bolt torque spec…. Hi, my name is***** will be assisting you. You will want to torque the head bolts to 225 in. lbs. using a crisscross pattern. I normally start with the top right corner and work around the head going from there to the bottom left and then moving over one bolt and across the head ...