I am a fairly new member with an old problem. My name is Jeff, and I'm a Buick addict. I bought my 87 GN back this past summer after ten years(never should have attended the shootout at Reynolds). It's straight and solid with 68k miles, good paint and clean interior. The engine was rebuilt in its absence (not by a Buick guy). The slightly bigger than stock turbo needed building, so it came off. Full Throttle hooked me up with a new Precision 62/62 turbo, LS maf, translator, and alky kit and extender chip. The first time I owned the car, I installed GN1 aluminum heads, BGC stock mount intercooler and elbow on the 3.5" downpipe, 42.5 injectors and billet regulator, 65mm throttle body, ported stock dog house and Champion ported stock manifold. It blew a head gasket right after I got it back and going, so I installed Cometic gaskets, ported the exhaust housing and added RJC boost controller(to get boost under control), RJC power plate, hot wired the STOCK fuel pump(we'll get to that result directly) and turbo saver thank the Lord. Of course I replaced all vacuum lines, plugs, fuel filter, pcv, o2... Everything was perfect according to the scan master- ran great, idled perfectly, pulled STRONG and rode smoothly. It was all good until I lost the number two piston. Take your pick of reasons- slight ticking from one of the lifters on the stock replacement ft cam, loss of fuel from stock fuel pump(I know), or combination of all these and then some. Whatever, the block broke-I did it- its on me. NOW- I have talked to a few of you, and received good advice. I want thoughts on the rebuild from the rest of you... I bought a 484 casting 4.1 and tore it down, only to find its already .40 over. I also have a standard bore 109 block. Which ever way I go, I'm using an ALL forged rotating assembly(stroker or stock stroke) and billet caps- no girdle, and roller cam. I'm stock piling parts- have new 80lb injectors, Red's double in tank pump, Earl Browns front cover, etc. I'd like to be in the mid-high ten second range(dialed in with sticky tires and traction). I know there are other areas of concern when you get there- converter, tranny, rear end, suspension, etc.-that's in the works, but not the question. I am and have been doing the work, and assembly with the help of a good friend with a shop- machine work will be done by a BUICK specialist. What would YOU do? I have both blocks- sleeve the 4.1 back to standard(I can do this for $330 including labor), or call that a loss and build the 3.8? Stroker or stock stroke(I'm aware of the cost difference)? Before you beat me up about what happened, know that I am and have been selling things dear to me to finance the Black Hole. I'm also forty years old, and was NOT slinging fat chicks around when it came apart... Thank you for your patience and two cents- discuss!
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