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Direct replacement for the stock M8 cylinder studs. Quality is much higher and recommended for performance builds. Complete kit. - 4140 Chrome Moly - Oil quenched and tempered to 39-44 HRC - 180,000psi Tensile Strength - Rounded thread roots, rather than flat, improving fatigue strength - Positive stop shoulder allows for consistent installed height - OEM replacement reference 16800063
S&S
New

S&S, M8 cylinder stud set

#986076

Stock:Yes

2222cc kit. Black powder coated wrinkle finish cylinders with clear (highlighted) fins. Kit includes a forged 4.320" big bore piston kit, black wrinkle 4.320" big bore cylinders, 2 multi-Layer-Steel .030" head gaskets, 2 cylinder base gaskets, 4 cylinder dowels, 2 exhaust gaskets and a S&S cubic inch cam cover batch. Works with stock crankcases, case boring is not required. 4-5/8" stroker flywheels are required, these must be purchased separately as 923270 or 923271. Note: S&S measured 150.5HP and 147.5TQ with a 590 cam, CNC heads, Big Bore throttle body and a high flow Stealth air cleaner kit. Note: Fully assembled 4-5/8" stroke stroker flywheel assemblies are required for installation of this big bore kit. Available as 923270 (with balancer gear installed) or 923271 (without balancer gear). Both come with full width wrist pin connecting rods, which is required for S&S pistons. Note: S&S 576972 extra strong head bolt kit or similar must be purchased separately. Note: Tuning of fuel injection and ignition is required. Note: S&S does not advise this kit for use on any Tri-Glide or other three wheelers, including conversions, due to the lugging nature of these bikes.
S&S
New

S&S, M8 136" big bore cylinder & piston kit. Clear fins

#994437

Stock:Yes

2222cc kit. Black powder coated wrinkle finish cylinders with black (non-highlighted) fins. Kit includes a forged 4.320" big bore piston kit, black wrinkle 4.320" big bore cylinders, 2 multi-Layer-Steel .030" head gaskets, 2 cylinder base gaskets, 4 cylinder dowels, 2 exhaust gaskets and an S&S cubic inch cam cover batch. Works with stock crankcases, case boring is not required. 4-5/8" stroker flywheels are required, these must be purchased separately as 923270 or 923271. Note: S&S measured 150.5HP and 147.5TQ with a 590 cam, CNC heads, Big Bore throttle body and a high flow Stealth air cleaner kit. Note: Fully assembled 4-5/8" stroke stroker flywheel assemblies are required for installation of this big bore kit. Available as 923270 (with balancer gear installed) or 923271 (without balancer gear). Both come with full width wrist pin connecting rods, which is required for S&S pistons. Note: S&S 576972 extra strong head bolt kit or similar must be purchased separately. Note: Tuning of fuel injection and ignition is required. Note: S&S does not advise this kit for use on any Tri-Glide or other three wheelers, including conversions, due to the lugging nature of these bikes.
S&S
New

S&S, M8 136" big bore cylinder & piston kit. Black fins

#994438

Stock:No

Black painted stock replacement cast iron cylinder. Stock 3" bore. Repl. 16465-58A. Note: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.
MCS

Replacement cylinder 900cc Sportster, rear

#500619

Stock:Yes

Black painted stock replacement cast iron cylinder. Stock 3" bore. Repl. 16464-58A. Note: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.
MCS

Replacement cylinder 900cc Sportster, front

#500618

Stock:Yes

High 9:1 (53cc dome) compression ratio. Fits as a direct replacement for 1340 (80") Shovelhead models, 3-1/2" bore with stock 4-1/4" stroke. These S&S forged pistons come in an advanced alloy and skirt profiles, resulting in a quiet engine and long life, previously only achievable with cast pistons. This is an excellent choice to overhaul your stock 1340cc Shovel with a higher compression piston. Pistons include wrist pins, wrist pin clips and piston rings. Note: S&S piston fit recommendations: Close fit .0030" to .0035", loose fit .004" to .005". Note: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install & make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.
S&S

S&S, 3-1/2" bore 9:1CR piston kit. +.030"

#531771

Stock:Yes

Black painted stock replacement cast iron cylinder. Stock 3-7/16" bore. Repl. 16491-41. Note: Cylinders must be finish bored and honed to fit stock size pistons. Cylinders are sold without pistons and rings.
MCS

Replacement cylinder 74" Knuckle, rear

#520019

Stock:Yes

2.030" overall length. Replacement base studs for pre-Evolution models. Replacement for 16831-30.
S&S

S&S, cylinder base stud set

#531545

Stock:Yes

High 9:1 (53cc dome) compression ratio. Fits as a direct replacement for 1340 (80") Shovelhead models, 3-1/2" bore with stock 4-1/4" stroke. These S&S forged pistons come in an advanced alloy and skirt profiles, resulting in a quiet engine and long life, previously only achievable with cast pistons. This is an excellent choice to overhaul your stock 1340cc Shovel with a higher compression piston. Pistons include wrist pins, wrist pin clips and piston rings. Note: S&S piston fit recommendations: Close fit .0030" to .0035", loose fit .004" to .005". Note: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install & make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.
S&S

S&S, 3-1/2" bore 9:1CR piston kit. +.020"

#531770

Stock:Yes

Acorn style
Colony

Colony head bolt kit

#929044

Stock:Yes

Zinc plated. OEM style reproduction. For models with cast iron heads.
Colony

Colony head bolt kit

#929811

Stock:Yes

Zinc, OEM style, incl. washers
Colony

Colony head bolt kit

#929814

Stock:Yes

Cap style, chrome plated
Colony

Colony head bolt kit

#929065

Stock:Yes

8 used, 7/16-24 threaded on both ends, 3 inch long
Streethogs

Streethogs, cylinder head studs

#900383

Stock:Yes

This cylinder protection fits the appearance of the BMW optimally and offers protection against stone chips. Made from silver powdercoated aluminum and easy installation because it can be mounted to the original mounting points.
Zieger

Zieger cylinder protector silver

#592938

Stock:Yes

This cylinder protection fits the appearance of the BMW optimally and offers protection against stone chips. Made from black powdercoated aluminum and easy installation because it can be mounted to the original mounting points.
Zieger

Zieger cylinder protector black

#592939

Stock:Yes

This cylinder protection fits the appearance of the BMW optimally and offers protection against stone chips. Made from silver powdercoated aluminum and easy installation because it can be mounted to the original mounting points.
Zieger

Zieger cylinder protector silver

#592940

Stock:Yes

This cylinder protection fits the appearance of the BMW optimally and offers protection against stone chips. Made from silver powdercoated aluminum and easy installation because it can be mounted to the original mounting points.
Zieger

Zieger cylinder protector silver

#592934

Stock:Yes

This cylinder protection fits the appearance of the BMW optimally and offers protection against stone chips. Made from black powdercoated aluminum and easy installation because it can be mounted to the original mounting points.
Zieger

Zieger cylinder protector black

#592935

Stock:Yes

This cylinder protection fits the appearance of the BMW optimally and offers protection against stone chips. Made from silver powdercoated aluminum and easy installation because it can be mounted to the original mounting points.
Zieger

Zieger cylinder protector silver

#592936

Stock:Yes