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cubic inches and HP of rebuilt 350 engine with bore of .040

3.5K views 4 replies 3 participants last post by  dannyessexc  
#1 ·
hello, i just got my 350 vrotec rebuilt with stock parts except for the cam its a 458 lift comp cam. the engine was bored .040 over, not much. i was wondering what the cubic inches changes to?? the computer is still stock will change chip ASAP! what is the estimated HP/TRQ i should have before CP Chip is installed and what could it be after the new chip(with all the modifications i have done)??
modifications: K&N air filter ram air induction/cold air, pace setter headers(2"-2.5") duals, hooker muffs. cam specs are; duration intake 206 and exhaust 210, lobe lift intake .3060 and exhaust .3050, lobe separation 111.0
thanks
 
#2 ·
357 cubic inches. I can`t give power estimates on sketchy detail. Head flow, compression ratio and many other varibles come into play. Without knowing what year your engine is I don`t know what it came with from the factory. With the parts you`ve added might give it 20 more horses and 35 more ft lbs of torque.
 
#3 ·
Sir

it is 1998 engine, rebuilt 2weeks ago and we did a compression test on #2 port it was 145 on 1stblow. i had bad injector and was troubleshooting thats why i did test, but dont know exact compression. if you could tell me how to get the specs. you need i will. not a performance person so its like French to me...lol