I'm starting the build on a 350 Chevy that's for my 50 Chevy PU .Nothing too radical,the truck weighs about 3300 pounds,4 speed with 3.42 gears.The engine is a 010 2 bolt main block with a cast crankshaft.
The local machine shop ,I do the assembly, says forget any stock GM heads,he suggests a set of Dart or similar aftermarket 180 cc intake port fast burn heads,about 9.5 compression with about .040 quench,and ,218-224 degrees duration at .050 hydraulic flat tappet cam will give an honest 330 hp and great mid range torque at reasonable rpm's.Getting this power with most stock GM heads will require more cam and less low speed power.Rebuilding stock heads might cost 400 bucks and for another 400 bucks the new better flowing heads are a bargin.In addition this swap limits headers to short tube "street rod" or the set of 2-1/2 outlet Ram Horns I have on the shelf.So it's better for power to come on at lower rpm's due to exhaust type.
400 dollars won't exactly break my budget and this shop gives better prices on heads than Summit ot Jegs.
So...do you thing the shop's advice is good for a hot rod that's never going see a race track?
The local machine shop ,I do the assembly, says forget any stock GM heads,he suggests a set of Dart or similar aftermarket 180 cc intake port fast burn heads,about 9.5 compression with about .040 quench,and ,218-224 degrees duration at .050 hydraulic flat tappet cam will give an honest 330 hp and great mid range torque at reasonable rpm's.Getting this power with most stock GM heads will require more cam and less low speed power.Rebuilding stock heads might cost 400 bucks and for another 400 bucks the new better flowing heads are a bargin.In addition this swap limits headers to short tube "street rod" or the set of 2-1/2 outlet Ram Horns I have on the shelf.So it's better for power to come on at lower rpm's due to exhaust type.
400 dollars won't exactly break my budget and this shop gives better prices on heads than Summit ot Jegs.
So...do you thing the shop's advice is good for a hot rod that's never going see a race track?