#434636226100
stroke 3.622" balance internal bobweight* 1790 constr 4340
Note: must use 6.125" rod or longer

#434639006100
stroke 3.900" balance internal bobweight*1790 constr 4340
Note: must use 6.125" rod or longer

#434640006100
stroke 4.000" balance internal bobweight*1790 constr 4340
Note: must use 6.125" rod or longer

#434641006100
stroke 4.100" balance internal bobweight*1790 constr 4340
Note: must use 6.125" rod or longer

*On all LS1 cranks, check reluctor ring runout. Engine will not start if runout is excessive. Maximum allowable runout is .020"