TK 14 SS

Just wondering, I now (finally) have the motor back together with all of the work done to include the heads have been milled .030.

My question is... I put the motor back together with the hardened (Thunder racing) 7.4" (Stock length) pushrods that I had in there before and was wondering, Is this going to be okay?

Thanks!
Troy

onyxxtreme

iTrader: (4)

it'll be okay till they all bend apun startup

1madss

iTrader: (10)

Use .030 shims under the rockers and you will be okay. This will make up for having the heads milled.

killer01ws6

It depends on the base circle of your new cam, most aftermarket cams have a smaller BS and the milling will make the stockers come back to be about right.

TK 14 SS

Allright, thanks guys. I put in a new custom grind Comp cam (from Combination Motorsports) so thinking (hoping) that it will be okay.

But I have to admit, I obviously addressed this possible issue a little late, didn't I ?

Onyxxtreme - you made my heart skip a beat at first

Scalpel

iTrader: (4)

All the Comp Cam LS1 grinds I have measured had a 0.030" smaller basecircle. If you milled your heads 0.030" then stock length will be ideal.

TK 14 SS

Awesome!!!
Thanks for the info

Troy

1madss

iTrader: (10)

Hmmm. I' running a MTI C1 which is a Comp XE lobe and S2 heads milled .030, 7.400" pushrods and .030 shims under the rockers.

killer01ws6

You may been putting too much load on the lifters, did you find out what the base circle of the cam was, that is a big factor.

1madss

iTrader: (10)

If the base circle of the cam was smaller than stock and I shimmed the rockers, that would cause me to run too little preload.

killer01ws6

You are correct..
I was in a hurry, My bad.