Quote:
Originally Posted by 2MCHPWR
flying.
are the LS3 heads and intake a direct bolt on? no mods needed? which tbody?
how do LS3 heads and intake (whats the intake from? ) compare to something like ported stock heads 241's and a fast 92mm intake?
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I'm running an ebay 90mm TB and stock LS3 intake and manifold. Flow numbers on a stock 823 casting LS3 head is comparable to most decent aftermarket ls1 heads so if you have a 4" bore, it's pretty much a no brainer to run to a LS3 casting. I bought the heads and intake manifold for $800 total. I sold my old cathedral ported Fast 90 for $700 so I pretty much switched to a LS3 setup for free.
Update on the car, it went 11.10 @ 121mph on a 1.48 60' last weekend. I found the limitation of the stock torque arm and bought a chassis mounted one this past week only to find out that one of the mounts on the floorboard of the car was cutout by the previous owner. I couldn't find anyone local in time to weld in a new mount so that's it for the season. The car definitely would have went 10's on the stock 10 bolt. Pretty sure the N/A record for a 10 bolt is like 1.45 so I was knocking on the door of that as well. The car is getting a viper spec'd 6spd this winter and maybe a rear before next season. I don't expect the car to go 10's for a while now.