Joined
·
2,157 Posts
fellas - do you have any direct (i mean you, yourself) experience with specific manufactures of aluminum heads?
i have a new GM 350 (prt# 10067353) with 10K miles on it and i need more compression (the actual compression of these motors is 7.86:1 - prt# 12499529. too).
i was going to use the 64cc vortec iron heads, but i would need to get new valve covers and intake manifold also - by the time i bought those i'm in the price range of a set of assembled edelbrock 64cc aluminum heads.
politics aside, i don't want any chinese casting heads - i've had enough of anything metal from china, they just don't make good product. i've found plenty of people who take chinese casting, then machine and assemble. i just found out 'patriot performance' is one of them, and i was ready to buy their heads. north american foundry or even casting from mexico are what i'm looking for.
what i found, so far, are edelbrock (prt#5089 $910/pr) and dart (prt# 127121 $940/pr) - it's more than i want to spend, but it looks like good heads at $700/pr just isn't going to happen. both of these have small volume intake (180cc), which i'm ok with (it's a cruiser and i want torque) they also have slightly larger valves ( Int 2.02 Exh 1.60) and are both 64cc. with the right gasket 64cc will get me to 9.1 or 9.2:1 which is still in the range of regular gas.
any others i need to look at/
next thing - i've never owned, for myself, a set of aluminum heads. what are the pros and cons? i know they should run cooler, anything else? what are the cons? i had a motorcycle with aluminun head years ago, the head bolts had to be constantly re-torqued. will that be true of auto heads?
i appreciate anything you can bring.
i have a new GM 350 (prt# 10067353) with 10K miles on it and i need more compression (the actual compression of these motors is 7.86:1 - prt# 12499529. too).
i was going to use the 64cc vortec iron heads, but i would need to get new valve covers and intake manifold also - by the time i bought those i'm in the price range of a set of assembled edelbrock 64cc aluminum heads.
politics aside, i don't want any chinese casting heads - i've had enough of anything metal from china, they just don't make good product. i've found plenty of people who take chinese casting, then machine and assemble. i just found out 'patriot performance' is one of them, and i was ready to buy their heads. north american foundry or even casting from mexico are what i'm looking for.
what i found, so far, are edelbrock (prt#5089 $910/pr) and dart (prt# 127121 $940/pr) - it's more than i want to spend, but it looks like good heads at $700/pr just isn't going to happen. both of these have small volume intake (180cc), which i'm ok with (it's a cruiser and i want torque) they also have slightly larger valves ( Int 2.02 Exh 1.60) and are both 64cc. with the right gasket 64cc will get me to 9.1 or 9.2:1 which is still in the range of regular gas.
any others i need to look at/
next thing - i've never owned, for myself, a set of aluminum heads. what are the pros and cons? i know they should run cooler, anything else? what are the cons? i had a motorcycle with aluminun head years ago, the head bolts had to be constantly re-torqued. will that be true of auto heads?
i appreciate anything you can bring.