engine build help. - Third Generation F-Body Message Boards

88transam400tpi · 10-04-2007, 11:12 AM

ok i bought a 86 transam with a lb9 but it a bad cam and no oil pressure. but i already have the stock 305 tpi out of my iroc i am going to put that in there and i wanted to know what you guys thought about my setup and if anyone has a idea about how much power it will have i would like to know.also any suggestions are welcome but anyway this is what i got a stock 86 lb9 bottom end with fresh hone,new rings,bearings,oil pump. i am using a slp cam 204/214 .420.442 but i am using comp cams roller tips 1.52 ratio so i think my lift will be .435/.459 the heads are stock 416 heads but they are fully ported with 3 angle valve job and new valve springs go to .500 lift.the intake is stock tpi base but fully ported probly about as big as you can go the runners are stock 4 now but they are ported as much as you can and i cut like a air foil at the top where each runner comes together and made it siamesed for like a half inch also ported the plenum and cut the dividers out between the runners. the throttle body is stock but i am going to bore to either 52 or 54mm but not sure witch size to go with i did the tb bypass and re located the air temp sensor. the injectors are stock l98 injectors from 89 iroc. also adj press reg. custom cold air intake . hypertec stage2. modified mass air no screens or fins. the exhaust is all stock right now but i am putting a set of eldebrock headers and a cat back system not sure witch one though oh also my cat is bad a long time ago all the stuff inside of it fell out. and it has a 9 bolt rear end but i dont know what gears are in here. does anyone know what gears usually came in the 9 bolts. the tranny is stock 700r4 with b&m shift kit.also i have a stock base intake that is siamesed but i wasnt going to use it on a 305but what do you guys think should i use it or just use the fully ported stock one . i am not looking for blazing torque or power or i wouldnt have put a 305 in it but it is going to be a daily driver i can have fun in and work on here and there. so what do you guys think any ideas and i missing anything. any idea haw much power i am looking at i have desk top dyno but my computer that it is on crashed so i cant use it now. thanks alot guys
wade

88transam400tpi · 10-04-2007, 11:32 AM

also i was wondering if it would be a good idea to adv or ret the valve timing when installing the timing chain. i need some advice on this though does anyone know what that will do for my motor