StreetSleepr

I'm going with a D1 for my 05 A4 LS2 GTO. The motor is completely stock with roughly 36K. I will have exaust and fuel upgrades...

My real question is, for reliability/longevity for the engine, should I go with dual valve springs and hardened pushrods for insurance? Should I worry about lifters?

I plan to only push 7-8lbs of boost...the car is somewhat a garage queen, but may see some strip duty...

thoughts?...

98turbls1

iTrader: (17)

springs and pushrods.... yes

lifters... no

StreetSleepr

thanks.

what's the reason behind not changing lifters?

ls1290

iTrader: (20)

You are not pushing that much boost and not spinning the motor very high.

StreetSleepr

Thanks.

EPP

iTrader: (22)

We use the stock lifters and rocker arms on a lot of builds. The springs and pushrods are the weaker items, as has been mentioned. Bob

patriotformula

iTrader: (28)

I try to put dual springs on all the cars I modify for safety, that way if one spring breaks the other holds the valve from falling into the cylinder and wrecking shop. Not a bad idea with the added stress along with the pushrods.

Stock lifters are sometimes the best ones you can put in until you get into big money items btw!