i have a few parts from my last grand prix build.
l67 short block with diamond forged pistons with coating on the top and sides 8.5:1 compression ratio. bottom end rebuild with the bearing and arp studs all around. balance shaft deleted and oil feed plugged. balanced to 50% has roughly 1500 miles since rebuild.looking to 2000 obo
i have a 97 gen 3 supercharger fully ported inlet and outlet. has 2.8 intense moduler pulley installed on it. with older style northstar throttle body on it. supercharger made about 16-17 psi with the 2.8 pulley and overdrive balancer. engine made 350whp. i think the coupler is going bad tho. has roughly 180,xxx miles on it.200 obo
i have gen 3 supercharger and heads from 2000 grand prix completely stock. roughly 122000 miles on it. took off to install turbo kit last year. i actually believe i have the whole top swap kit minus the balancer.400obo