Looking for more HP from a 360
Do you mean .021 in the hole? Are these stock OEM type pistons or something else?
I dyno'd an engine 2 years ago that was kinda interesting: It was in Mark Kirby's "Grape Ape" duster.
He had been running a 340 with ported stock heads, mostly stock parts like rods and crank, and a large roller cam. It had I believe around 12.5:1 compression (obviously not street legal).
Car ran a best of 10.80's and consistent 10.90's but wanted more HP without much trouble and $$$.
So he purchased a stroker bottom end, 4" crank, Ross pistons. Compression was 13:1, kept the cam, heads, intake, carb and headers the same.
Put it on our dyno and it made 550HP. Put it into the car and it ran 10.50's with 1.38 60ft.
So even though the stock heads are weak for that size of engine and rpm he was running, they still made very good power.
You might want to look into the stroker kit, it's easy as pie power. I prefer good cyl. heads, but you do need a decent bottom end.
In this case, you could do the bottom end (stroker kit) and later if you wanted more HP you could bolt on the eddy heads and pickup some power.
That's the way 90% of my customers go....bottom end first then topend when they can afford it.
Hope that helps some....
Do you mean .021 in the hole? Are these stock OEM type pistons or something else?
I dyno'd an engine 2 years ago that was kinda interesting: It was in Mark Kirby's "Grape Ape" duster.
He had been running a 340 with ported stock heads, mostly stock parts like rods and crank, and a large roller cam. It had I believe around 12.5:1 compression (obviously not street legal).
Car ran a best of 10.80's and consistent 10.90's but wanted more HP without much trouble and $$$.
So he purchased a stroker bottom end, 4" crank, Ross pistons. Compression was 13:1, kept the cam, heads, intake, carb and headers the same.
Put it on our dyno and it made 550HP. Put it into the car and it ran 10.50's with 1.38 60ft.
So even though the stock heads are weak for that size of engine and rpm he was running, they still made very good power.
You might want to look into the stroker kit, it's easy as pie power. I prefer good cyl. heads, but you do need a decent bottom end.
In this case, you could do the bottom end (stroker kit) and later if you wanted more HP you could bolt on the eddy heads and pickup some power.
That's the way 90% of my customers go....bottom end first then topend when they can afford it.
Hope that helps some....