89lxstanger is right, the quad 4 was offered in a sohc version, then a dohc version as a low output, high output, w41 and the rare bilmer model, but not one has ever been refered to as a twin cam. the twin cam as its called these days is what ht equad eventually evolved to, but you can call a gm dealer and ask them and theyll tell you that its 2 different motors.

let me explain something to you mr pig ****er. the quad 4 from the mid 80's to 95 had parts that worked with evrey single one of the other models of itself. meaning the heads, cams, complete bottom end assembly, valve train, cooling and oiling parts were interchangable.

wanna know whats different between the 2.4 and any 2.3? the bore, stroke, head, cams, valves, oiling system in its entirity, many of the engines accesories. in fact to get the 2.4 head onto the 2.3 bottom end you need to redrill the oil passages on the head to have it fit the bottom end, and in that case your gonna get about 13:1 compression, whereas you could swap any head from any quad onto any quad bottom end. the bolt locations for the intact and exhaust were different between the 2.4 and 2.3 and also the port design was complatly changed. the only ismilarities are really the valve springs because gm lists them as the same part number.

so there you go moron, completely different in everyway. the 2.3 had its problems as did the 2.4, but wanna know a little secret, every car manufacturer that brings out a new or compltely rediesigned motor or car for that matter will have many recalls.

oh and as for sitting in the shop all the time, my car has never spent time in the shop. i maintain it on a regular basis and beat the piss out of it, in fact right now the car makes more than double the horsepoer that it made stock and look, no problems with it. funny how that works for such a poor motor.

then again, if you ever had a car that was actually yours and not one that you stood by while it was being built and then pretended to call your own youd maybe know a little something about cars.

so in conclusion, i leave you with this. go blow your dad

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