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46flattie
05-02-2007, 06:22 AM
Putting my 401 together and figured I'd better check the clearance. (I'm running TRW 9.5 to 1 forged pistons and the Summit 8600 cam.)

Used the clay method and it appears that I have plenty of clearance. (close to .250").

I did not have a solid lifter available, so here's what I did:

1. Used an old hydraulic lifter and adjustable push rod tool.
2. Completely collapsed lifter.
3. Rolled over the engine a couple of times monitoring the lift at the push rod end of the rocker arm w/a dial indicator to verify the lifter was completely collapsed.

Is this an acceptable using a hydraulic lifter in this manner?

Thanks,
Scott

jeepsr4ever
05-02-2007, 06:37 AM
You shouldnt have to check that setup it will have plenty of clearance.

46flattie
05-02-2007, 09:40 AM
You shouldnt have to check that setup it will have plenty of clearance.

Yeah, I figured it would, but I better safe than sorry....too much money invested!

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