Valve Train/Pushrods

[DarkMesa8]

After numerous readings of old posts, I haven't found a single person who was able to use a stock pushrod length with a Crane 2031.

The previous owner of the car assembled the motor. It had a Crane 2031, Edelbrock Performer heads, and Cobra 1.7RR's. He just threw the stock pushrods in, and said they worked fine.

If the pushrods are too short... am I missing out on some horsepower? A lot, a little? Car runs fine... just wondering if it could be faster. Powerband only comes in at 2800rpms, if that matters.

 

[DarkMesa8]

ttt

 

[MrKwik]

if the pushrods are too short you would probably hear the lifters clicking.

I used stock pushrods with that cam and 1.72 crane roller rockers and it was fine.

 

[DarkMesa8]

Hmm... my lifters are noisy. I thought it was an exhaust leak, until I got a stethoscope on it and the headers were all silent.