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Re: What is a 94, Heavy Duty 350 engine ?
Check your owners manual and compare it to the 8th digit of your VIN... they stopped giving as much information, but mine's still got it in there. On my '86 the std. engine is VIN L, HD version is M. The compression is about 1/2 a number lower... don't remember exactly what maybe 9:1 for std, 8.5:1 for HD or something like that. The HD also has 4-bolt main bearing caps. I'm pretty sure the torque is higher on the HD. The rebuild kit is probably the same for both, but check with your local parts professional
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'04 Cavalier coupe M/T 2.2 Ecotec
Supercharged 14 PSI boost, charge air cooler, 42# injectors
Tuned with HP Tuners
Poly engine/trans/control arm bushings
Self built and self programmed progressive methanol injection system
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