just checking on pushrod length ms4 what is it?

 

Well stock length pushrods are 7.385" so with the smaller base circle of about 1.400 versus the stock base circle of 1.550 I would guess 7.425'/7.450 would be about right but the best way is to measure since that is assuming a lot of measurements. 7.400 would be too loose.

1.550-1.400/2=75 thousandths longer + 7.385 = 7.460in

 

some use 7.425 and some 7.450. depends on lifter preload/heads. to many variables. only best way is to measure. contact tsp also and tell them your exact setup. odds are they know what pushrod length to use since theyve done so many ms4 combos