Billet Crankshaft

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...

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...

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. 

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.   This crank has not been cut for camshaft clearance. Some clearancing may be...

Billet Alloy Crankshaft For the Briggs 5hp Model 13 or Blockzilla engine. 3.00"(+.563) with a .875" rod journal  and 3/4" PTO shaft.Machined from the hardest, toughest material ever used for small 4 stroke engines. Balanced for engines with 2.562"-2...