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Will 305 heads on 350 Chevy block make crankcase preesure?
Putting 305 heads on a 350 block might increase the compression ratio if the combustion chambers are smaller, and they might improve low end torque at the expense of top end horsepower if the valves are smaller. Not sure how that would effect crankcase pressure, if at all.
Will the top end of a 305 fit on a 350?
intake no, heads yes.
Does anyone one know if there is a difference in the engine blocks from 1980 to 1988 for the Iroc-z TPI I need the bottom end for the 305tpi?
If I'm remembering correctly the 305 and 350 have the same block and same bore, the 350 has different heads and a longer stroke
350 tbi versus 305 tbi?
#1,if this is in a truck,though a 305 is not necessarily a horrible engine,it has a much weaker bottom end then most 350s. Therefore for a truck engine,or any stressed application,I would recommend the 350 over the 305,altogether separate from the power issue. 350 tbi & 305 tbi are the same weather 2 or 4 barrels
What was the original motor size for the 1986 Chevy 1500 truck?
350 or 305 depending on rear end
Will a 350 stock intake manifold fit a 305 motor?
I had a gmc truck once that had a terrible exhaust leak I was told it was because it had 305 heads on a 350 block and the mechanic that told me this plugged up the leak with a bolt it sounded like it was out of oil all the time go figure! acctually if you put 305 heads on a 350 it will increase compression and you will have more low end torque so go for it dude
What engines will fit in a 1977 Chevrolet caprice classic?
267 ci 305 ci 327 ci 350 ci 400 small block and big block ci 454 big block simply any engine made by cheverolet make sure you get the right transmission, drive shaft, and rear end
Can you put 305 heads on a 350 and what head gaskets need to be used 305 or 350?
First of all, if 305 head will fit on a 350 block, and I don't think they do, why would you want to? The idea is to get bigger or same size heads. As far as the gasket goes, your block dictates the size of the gasket. However that's a moot point since the gasket/head/block have to fit together in order to work. Obviously Tim does not know much about small block Chevrolet engines. All small block heads from the same generation will mix and match from the 265 to a small block 400. The only exception is that if any heads are used on a SB 400 that weren't designed for it, you have to drill small holes between the cylinders for an extra coolant passage. This is one reason why Chevys are so popular with enthusiasts. There are even ways to use different crankshaft, connecting rods and pistons to make stroker engines. Use the head gaskets that match the block for sure. Tim also says the idea is to go bigger or same size. How do we know what the authors ideas are? We can't read his mind. He may be on a limited budget, and the 305 heads may be all he has. Good luck, the possibilities are almost endless. Yes, you can put 305 heads on a 350. The smaller valves will lower the peak horsepower, but it will have much better low end torque. Also, the smaller combustion chambers will increase the compression ratio enough to require premium fuel.
Can you go from a 305 automatic to a 350 that was manual but change it to automatic?
Yes. Be sure to remove the pilot bushing in the back end of that crankshaft in the motor that was a standard.
What is the maximum hp the 305 ci can produce in the 1986 Monte Carlo ss?
the 305 is not a hot rod engine. it is possible to get around 350 hp but don't waste your time or money. the bottom end is not strong enough to take much hp. try to locate a 350 cu in 4 bolt main engine and re do it. marlin
Will regular 305 heads fit a 350?
Yes. The smaller valves will increase the low-end torque and limit the top-end horsepower potential, and the smaller combustion chambers will likely increase the compression ratio a bit.
How much hp will your 305 small block have if you had a holley throttle body and edelbrock intake and extreme volocity air intake system and 327 heads and hooker headers?
you could put a blower on a 305 and a 350 with 10 to 1 compression w 2.02 valves and a stock quadrajet carb willhumiliate it sorry i went through 6000. wasted on my 1977 camaro lt w/ 305. the motor is nothing but a boat anchor. if you want to have real power order a crate 350 with a stroker kit the 305 just wont cut it i had heads cam pistons steel crank headers and a holley blower with nitrous if i got over 340 hp it was sad with all the goodies, and my friends stock 350/350 chevelle would burn me every time. so i gor so fed up i built a 427 and started running mid 10.s To answer the question, your engine would probably not see much, if any, increase over stock hp. 305's had 58cc chamber heads with small valves. This kept the compression up, and improved the low speed air velocity for good low-end torque. The 327's had mostly 64 cc heads, which would lower your compression ratio, and bigger valves, which would improve high speed breathing at the expense of the previously mentioned low-end torque. Also, depending on the cam, you could have a problem with valve to block interference since a 305 piston is a lot smaller than a 327 piston. 305's don't respond to the same performance enhancements as a 350. You can increase the compression with better pistons, change to aftermarket heads and cam, and get the engine up over 300 hp, but the block just isn't made for any more than that.
