Paul94Z

as the post says, I am trying to sqeeze all available power from my motor N/A before I think about adding a power adder. Basically I'm running a stock rotating assembly with new hypereutectic pistons and 30k miles on it, cc306, 1.6 crane golds, heavily ported OEM heads with 2.02/1.60s, and LTs. I just purchased some lucas 42lb injectors and a BBK 58mm so this should get me a little more top end power. I have unknown double valve springs on these heads but it was what was originally on the motor when I got it so it apparently is a good combination. Since the lift now is 544/576 I was wondering if I could put some scorpion 1.65 or 1.7 rockers on the intake to gain a little more flow. The 1.7s would put the intake at 578... just a hair over the current exaust lift... should there be any concerns of binding? give me your opinions

SoloExceptional

1.7's would push it above .600 on exhaust side and I believe that is where you need to start being worried about clearance between valve and pistonAnd as far as I know, the only way to get more power is start getting better flowing heads or bore and stroke or maybe a custom ground cam specifically made for your setup might do it. A really good dyno tune will help you a lot too.

Paul94Z

I just want the 1.7s on the intake side.. that way I know the lift will be almost identical to the exhaust lift.. both intake and exhaust springs are usually rated to the same lift correct?

DavesLT1

they should be rated the same as they come in a set. wouldn't it just be easier to get a different cam that is more to your liking?

Paul94Z

this particular motor has all the internals its ever getting.. just looking for any easy / fairly cheap bolt-ons

SoloExceptional

Yeah they're rated to the same as long as you put the same springs on there, but my points is I believe LT1's use cams with more exhaust than intake for a reason like they require it, I could be wrong though.