brickproof
iv dropped my engine off at the machine shop with the guy saying he will have a estimate within a week. he pretty much shot down all my ideas, saying to gradually increase my bore instead of going straight to .060 over, he told me to avoid polish/porting heads because it will decrease my torque, and he also said he could have me running a 10 for compression with the right distributor and etc. hopefully this guy knows what he his doing and can actually accomplish what he is saying.
tufcj
You won't get the HP numbers you're looking for without port/polish and bigger valves on the heads. I'm not talking radical, just cleaning up the casting flash and smoothing the runners. With factory heads/valves, you might get 1 HP/cu in, maybe a little over 300.
Bob
tufcj
jeepsr4ever
You definately dont need to polish. Port work can help but compression and a good cam would be a good start.
brickproof
alright well il have to see what he wants to do after he's looked at it and try to convince him into using the bigger valves
newt
The power numbers you are looking for (400hp) will be difficult w/ the little 304 (difficult is just another way of saying EXPENSIVE). I think you might be happier with a nice 'normal' performance build and then add a shot of N2O for those rare times when you really need the power. This will most likely be the most cost effective way to hit 400 hp and you'll have a reliable / drivable engine for the 99% of the time you don't need 400 hp.
brickproof
i agree with that statement but i would also be fine with only 300 horsepower with hopes of getting that and maybe 400 torque so far i only have a estimated price for labor coming in at a little over a grand
