ARC

CNC machined toughest material ever used for small 4 stroke engines. Features a true 1/8" journal radius for strength and durability. Also features airplane wing style counter weights that are proportionaly designed for superior balance. ARC's...

CNC machined toughest material ever used for small 4 stroke engines. Features a true 1/8" journal radius for strength and durability. Also features airplane wing style counter weights that are proportionally designed for superior balance. ARC's new #6576...

NEW 6577 ARC Billet Crankshaft  3.100" X 1"  SplinedThe ARC Splined Crank utilizes a 10 tooth straight sided spline that creates a much greater load displacing area than a normal keyed crank. No more broken PTO shafts and makes clutch removal a...

Billet Crankshaft 2.437 Stroke with a .9985 Journal.This alloy crank features a true 1/8" journal radius for added strength and durability. Crank is balanced to be used as a stock replacement crank for the 5 HP Flathead modified.   Recommended...

Billet Hardened 4340 Chromoly Crankshaft   2.437 Stroke with a .9985 Journal.This crank features a true 1/8" journal radius for added strength and durability. Crank is balanced to be used as a stock replacement crank for the 5 HP Raptor Flat...

Billet Alloy Crankshaft   2.437 Stroker with a .9985 Journal.This crank features a true 1/8" journal radius for added strength and durability. Does not require the Animal stroker gear. Uses stock Briggs Animal or aftermarket equivalent...

ARC Billet Stroker Crankshaft Hardened 4340 Chromoly 2.587"(+.150") X .9985" Journal for the Briggs 5HP Model 13 Flathead Engine.   Recommended flathead application only.

Billet Alloy Crankshaft  +.200" Briggs Model 13 Flathead. 2.637" total stroke. Machined from the hardest, toughest material ever used for small 4 stroke engines. 1" journal with a 3/4" PTO shaft. Recommended flathead application only.

ARC Racing Billet Crankshaft +.200"(2.637) stroke for the Briggs 5hp Model 13 flathead Engine. Made from hardened 4340 Chromoly Steel to the quality standards you have come to expect from ARC Racing. True 1/8 radius crank pin(.998 diameter) and 3/4" PTO...

Billet Alloy Stroker CrankshaftBriggs 305cc Model 20. 2.637"(+.200") stroke for ARC 6235 rod. Must use the ARC #6056 side cover. 

ARC Billet CrankshaftINTEK 305 Stroker This Crank works well with the ARC 6236 Billet Connecting Rod and the 6535 Crank gear in the 305 stroker engine. 2.637" stroke.

ARC Billet Alloy Stroker Crankshaft for the Briggs 5hp Model 13 or Blockzilla Junior Dragster Engines. 2.887"(+.450") stroke with a .875" rod journal and 3/4" PTO.