|
Well, provided that you have a supporting exhaust system, ect, I would say talk to either Lloyd Elliot (search in LT1 Tech on CamaroZ28.com) or talk to Phil @ Advanced Induction. I know LE offers heads for $1300 and head/cam packages for about $1500, and advanced incudtion offers them for about $1700. Both of these guys have been getting consistent results in the 400+ RWHP range. GRanted, you'd still need new rockers, but the heads would be coming complete (springs, retainers, ect.). Pushrods, guideplates (if you went with a N/A rocker), gaskets, timing set would all need to be purchased, but if you played it right you can still be under that $2300 price tag of the LT4 getup.
The thing I don't like about the LT4 setup is the advertising, and the power for the money. They advertise 425 HP, but what they don't say is that's flywheel, not rear wheel, not to mention that it's a pretty optimistic rating too. Given a 15% power loss for the drivetrain, you're talking 361 RWHP. Not going to happen on a hotcam and unported LT4 heads.
Besides that, a ported set of LT1 heads will KILL a non-ported set of LT4 heads. Even when the LT4 heads are ported, the LT1 runs neck in neck with the LT4's until the .550+ valve lift range, where the LT4's will flow slightly more. The gross lift of the hotcam with a 1.6 is only .525", so then again the LT4 heads become a non-factor.
You could get a good set of ported LT1 heads for + or - $1300, a custom cam for <$400, new Pro Mag 1.6 SA rockers for $250, gasket set for $150, and a new timing set (pricing varies depending on year, Water pump used), and KILL a LT4 conversion kit.
|