Pushrod length

[Stroker Ace]

I have a (what I'm told is) 97 block with a 94 head. The block has been resurfaced but NOT decked. The head has be resurfaced too. The cam is stock. Can I use stock length pushrods or do I need to order a checker and get a custom length made? Thanks.

[SilverXJ]

How much has been taken off each?

[Stroker Ace]

Unknown. Just told it was a clean up. I bought this long block used/new with no pushrods.

[JeepFamily]

The best way is to use a push rod measuring tool. Measure the rod length at zero lash and add your preload between 0.040" and 0.060". The unit from Comp Cams is a good one and not too expensive.

[Muad'Dib]

Agreed.. best to check it.. although if what you were told was true and barely anything was shaved.. Stock Pushrods should be fine.

[JeepFamily]

Good point. For final verification once you've installed the factory push rods, you should achieve 1/2 to 2/3 turn from zero lash when torquing the rocker bolts.

[Stroker Ace]

Thanks everyone. Pushrod checking tool is on order.

[shawnxj]

what's the best way to measure? from the base circle to the rocker then add preload?

[shawnxj]

anybody know off hand how long the 97+ pushrods are? the faq only lists up to 96

[JeepFamily]

9.640 to 9.660 inches

[SilverXJ]

what's the best way to measure? from the base circle to the rocker then add preload?

Pretty much.

[Stroker Ace]

Used the checker. Came up with 9.525 with the 0.060" preload. We'll see how she runs. I hope I did it correctly.

[SilverXJ]

why are you going with .060" preload?

[Stroker Ace]

why are you going with .060" preload?

I read on here multiple times .040 to .060. Is this not correct?

[shawnxj]

i have a pushrod measuring tool(tfs-9002) but nobody lists how much per turn it is. so can i just a pushrod and tighten it up to zero lash then but a dial indicator on it to see how much is compresses for preload? the lifters have been soaking in oil for about a year before i put them in the block last night