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Old 01-04-2013, 01:15 AM
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Help With Heads!

Hey there, i need some help deciding on buying a set of heads over what i have now. I can get a set of 441s with a 3 angle valve job 1.94/1.50 screw in studs and guideplates for $200. I heard that these arent bad heads for what they are. Any help?? Would i notice a difference? Is it worth the swap?
My engine:
1980 350 stock bottom end.
882 heads
weaind stealth intake
edelbrock 1405 carb
lunati 442/465 lift cam
msd dist.
1/58 flowtech headers into flowmasters
Thanks any advice is appreciated.

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Old 01-04-2013, 02:05 AM
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hold out for a high performance head with a smaller 58 to 64cc chamber and high flow ports.

more flow and more engine compression ratio.
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Old 01-04-2013, 08:50 AM
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your engine has a mild combination.I would start all over when the engine needs freshening
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Old 01-04-2013, 10:04 AM
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Quote:
Originally Posted by gvasquez_81 View Post
Hey there, i need some help deciding on buying a set of heads over what i have now. I can get a set of 441s with a 3 angle valve job 1.94/1.50 screw in studs and guideplates for $200. I heard that these arent bad heads for what they are. Any help?? Would i notice a difference? Is it worth the swap?
My engine:
1980 350 stock bottom end.
882 heads
weaind stealth intake
edelbrock 1405 carb
lunati 442/465 lift cam
msd dist.
1/58 flowtech headers into flowmasters
Thanks any advice is appreciated.
The 441's are a better casting but still have the big smog chambers and small intake port volume. You would notice a change only if your current heads are worn out. Otherwise it's more of a sideways move than an upward move.

You would feel a difference by swapping to a set of production L31 Vortec heads. Takes a different intake, rockers, and center bolt valve covers though.
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Old 01-04-2013, 10:52 AM
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441s are not bad but pretty close in port shape and head cc to your 882s.

441s are not the bad arse double hump heads just ones that are performance but not high compression. Probably designed for poor fuels and light weight cars.

I would go after market with procomps or trick flows or another cheaper head.

Fyi most heads sold on the net have something wrong with them or are redone. Not sure if these are from the net or a friend but the price is good and the work sounds like the right stuff for some performance. If your looking for a 300 to 350hp engine i think these will do the trick as long as your pistons will support them. They wont since its stock bottom end probalby has dish pistons. 64cc heads is what you need with a big cam. That is where you will pick up the power from. Good heads for turbo.

I would think about some 64cc chambers with a larger cam. I just got a set of procomps from this guy on ebay i called didnt want to deal with ebay crap. Pix in my album under my profile. They look great i am very happy with the wpork that was done. I am hoping to smack out over 500 hp with these bad boys. Going to try them uncut just so i know for futre referece of they work without major repair they surely look like they will.

But here is a rebuilt set of heads from tje same guy. He seems cool and easy to work with. Price is right that is for sure. But still 200 above the price you had. I would buy the 200 dollar heads just to stick on a few good blocks i have around.

Performance 327 350 400 Chevy Cylinder Heads 416 SBC Bronze Guides 500 Springs | eBay

These are 64cc heads with 2.02 vales and good ports. They will also port pretty cheaply.

Just for an fyi i have a great setof fuelie heads I my never used because at that power level i would normally buy aluminum heads. So they may be great but they are still paper weights.

Last edited by hcompton; 01-04-2013 at 11:04 AM.
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Old 01-04-2013, 03:19 PM
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I just found out that a relative of mine has 462 heads. He said that they came off a running engine and that he was gonna use them but didnt have time. and $150 bucks you cant beat. I know that because of the 64cc it will boost my compression the only thing that im having trouble with is finding brackets for my alternator and power steering? Any advice?
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Old 01-04-2013, 03:26 PM
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Quote:
Originally Posted by gvasquez_81 View Post
I just found out that a relative of mine has 462 heads. He said that they came off a running engine and that he was gonna use them but didnt have time. and $150 bucks you cant beat. I know that because of the 64cc it will boost my compression the only thing that im having trouble with is finding brackets for my alternator and power steering? Any advice?
Drill em and tap em. No problems they are good heads.
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Old 01-04-2013, 03:28 PM
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i heard that you run into the risk of ruining them. Just something about drilling the heads seems not right to me.
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Old 01-04-2013, 03:33 PM
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THis guy can set you up with brackets.
Chevrolet Steel Mounting Brackets
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Old 01-04-2013, 03:36 PM
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You read my mind!
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Old 01-04-2013, 06:11 PM
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Another question guys. im not sure if the 462 heads have hardened valves? is it absolutely necessary to run hardened valves? or can i get away with adding a lead additive every once in a while? while it do anything to my engine? thanks
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Old 01-04-2013, 06:14 PM
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Quote:
Originally Posted by gvasquez_81 View Post
Another question guys. im not sure if the 462 heads have hardened valves? is it absolutely necessary to run hardened valves? or can i get away with adding a lead additive every once in a while? while it do anything to my engine? thanks
You can drive then til the seats are beat to death and that takes a long time with or without the lead additive. But harden valve seats are not hard to have installed.

Fyi is there an X on the under side of one port. If so you can probably get more for these on ebay than a new set of trick flow or world heads.
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Old 01-04-2013, 11:20 PM
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Does any one know what the max lift was on the 462's? Just curious about some info on them?
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Old 01-04-2013, 11:33 PM
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just over 200 CFM at .6
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Old 01-04-2013, 11:46 PM
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Quote:
Originally Posted by gvasquez_81 View Post
i heard that you run into the risk of ruining them. Just something about drilling the heads seems not right to me.
"...something about drilling the heads seems not right to me". Because it's not right to drill them.The problem isn't so much that you may hit water- you WILL hit water. But the casting isn't thick enough to always support the load the brackets put on them, and the head surfaces aren't always flat so alignment can be off. People have done this and gotten away w/it- but there are a lot who regretted not doing it the right way from the get-go.

The easiest/cheapest way around this is to swap over to the ('68-back) short water pump set up. The only snafu is the A/C compressor used back then was the big old A4 type. If headers are used there are different brackets from the aftermarket that need to be used for the alternator, but these are cheap. Custom brackets that don't require the head accessory holes will also work, but are expensive and I personally do not care for their looks. If custom brackets were the only option, Vortec heads are looking more affordable, besides making more HP than any of the other heads you've mentioned.
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