I have a Silvertop 20V engine/trans and complete harness(no fuse box). I was going to do the install in my 89 GTS. I just bought a black 91 GTS with a smallport red top to fix up for the summer. should i get the rest of the parts for the 20V swap or refresh the Smallport. I was told they are close in power + cams, just as powerfull? What should i do?
Either install the 20V, get Ryan to do the wiring for you and go from there OR do up the smallport, buy a MAP sensor kit from Ryan (10hp more) cams, exhaust, and sell me the 20V.
rebuild kits for the 4age aren't that expensive and it would be easier to sell ren the 20v and fix up the 16v and shove it back into a car it came out of
at worst, rebuild the smallport 16V.... strip the itb's off of the silvertop, go with an aftermarket ecu which is either MAP or alpha-n based.... you will have a cool, reliable setup that you can get parts for... AND it will produce more power than the silvertop