SlowZo6

Like that title says. What Length and brand of push rods do you guys run when you mill your LS7 heads?

I know stock length is 7.800 so I was thinking of dropping to (7.750)

lane_change

Depends on the cam base circle, lifters, gasket thickness, etc......but with my heads I had to drop down to a 7.750. But mine are only flat milled around .010 and the rest of my port work was angle milled from WCCH.

meatheadgn

As Lane_Change stated, it depends on a lot of variables. I have a Lethal cam and ended up with a 7.750 pushrod with my .030 milled stock heads. You really should measure but I bet the 7.750 would be close with stock head gaskets and similar base circle cam like the Lethal.

SlowZo6

Thank you both, and yes I know the mechanics of this, and all the variables, just wanted to get some solid feedback from those that have already done this. Thanks again.
Ernie.

htvette

Same here 7.75 harden pushrods, 11.6 compression, .030 milled heads. Making 580hp with katech cam, stock intake and throttle body.

spdmn75

I did 7.775 so .025 shorter and these worked for my lethal cam setup. Make sure you order the right ones as it took the place I ordered from 3 times to get it right

spdmn75

Also my heads .030 milled. The shop that sent me the first batch of pushrods sent 7.750 and I noticed tapping right away

starchedup

That's what I have too. Sodium filled exhaust valves replaced with stainless

Head work via TPS

SlowZo6

What valve springs are you guys running with the lethal cam?

meatheadgn

I run the Manley Nex-Tek Springs. They were rated good and Ragin recommended them with the cam. I run PAC's on my LS6 and they seem good too. I would run what the cam manufacturer suggests as they have a larger experience base. Good luck Amigo. You will love the car with the bigger cam. Everyone loves the sound of a cammed up car....