stock push rods

[lasvegas69charg]

hi. Is it safe to say that I will be ok using the stock push rods, rockers and shaft on the edelbrock heads?  I have bolted it all up and ready for the engine dyno.

[Chryco Psycho]

it would be worth checking the pushrod length to make sure you ahev the right preload in the lifters

[lasvegas69charg]

this is all new to me. How do you check preload and does the engine need to be primed before doing this. Just a little history I took a stock block and installed a edelbrock top end kit which includes heads, timing set, cam, lifters and intake. I reused the the stock rockers, shafts and rods.

[firefighter3931]

I would recommend upgrading the pushrods to a thick wall 5/16 chrome moly piece. The stock pushrods are designed for light spring pressures and the E-Heads have 340lbs "open" pressure. 

Read this thread : http://www.dodgecharger.com/forum/index.php/topic,93082.0.html  There is a link to the part you need on the last page.

You should be fine on preload because that is a mild cam but to check pre-load you need to get the lifter on the base circle (heel) of the cam while installing the rocker arm/shaft & pushrod. The pushrod should compress the lifter plunger a small amount (.020-.040) and if that's the case you're good to go on pushrod length 


Ron

[lasvegas69charg]

thanks ron.  I just ordered a set from mancini racing.