Hey guys, I am going to rebuild my 420a for turbo, but I want to rebuild the motor ASAP because the head gasket is leaking worse and I might as well pull the motor and rebuild it all at once since it will need to be built for boost. Are 8:8:1 compression pistons going to run ok naturally aspirated? I'm assuming it will run like crap with no power (like it had any power stock). But will it cause any problems? Thanks

It'll run but it's going to feel like a dog. Wrong forum by the way.

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BPU'd skittle

Captain Caveman

96 RS Turbo 11.414 @ 119.62 MSNS, Crower 2 NA cams, BW366, 10.5 comp, UDP, 60mm TB, W/A intercooler, 3.55 tranny 567.9whp 430tq
97 RS NA 13.188 @ 103.87 MSnS powered 12.5 comp, Crower 3's and 219.4whp with 175tq
98 RS DD 12.5 comp on stock ECU, LTH, Crower 2's, Koni, GC, Hypercoil, DG hats
99 OZ 5sp Stocker 15.856 @ 85.97
99 GS stocker auto 17.7@77mph!

wiki home page:http://www.2gnt.com/index.php?d=bullettdsm

+1 on running like a dog, It sucks gas too, I have msns and I am getting a little more than 300 to a tank where when I had the oem ecu doing things it was only getting around 270. I still have to lean some areas out on my cruising because its droping to high 11s low mid 12s. I can't wait to turbo it I just don't have the cash.

Great way to break in the new bottom end. You will have to downshift two gears to go up hills.

-Alex

That isn't an oil leak; it's sweat from all of that horsepower.