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Old 03-05-2007, 04:50 PM
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head ache. sbc heads

i have a set of sbc heads that i think are 327 heads im not shure. i was told they are called blue boys they have been ported polished hogged out and they seem to have had some of the metal shaved off of the bottom. here are a few picks of the heads. i am building a 350 would it be wise to use these heads. what measurments do i need to make them work as far as how much the valves have been hogged and how much has been shaved off the bottom am i corect in thinking that i will need to adjust my intake to work with these heads. should i just look for anouther pair of heads to use. i had a nova setting in a freinds yard that i was just going to let the guy who had the heads have but when i seen the heads on an engine he was building i told him he could have the nova for the heads just didnt want to walk away empty handed.
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Old 03-05-2007, 06:07 PM
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Those are 66-67 heads used on the 302, 327 and 350 High Performance motors. Those have the big valves and originally had 6 161/65cc port volumes, but no telling since they have been "hogged out". They do not have the accessory holes in the front so you will need some very specific brackets for your motor and may have to go after market to mount up what you want. Good heads in their day.

Trees
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Old 03-05-2007, 06:15 PM
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in there day? lol im guessing i should go with new aftermarket any idea of a brand where price and pro meet
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Old 03-06-2007, 09:16 AM
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If the heads are in good shape, guides ok ,no cracks, not hogged out to thin(hit water) run em ,they will support well over 400 horsepower. Newer heads are better but on a street ride these will make plenty of power.
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Old 03-06-2007, 12:08 PM
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the nova was in wonderful shape but i dont really car not a nova guy and i was giving it away for free any way. i have found that waht goes around comes around. a few days after i gave the nova away i had an brand new aluminum radiatior with duel electric fans, 650 cfm edlebrock carb n performer intake given to me. i have a 2 qjet carbs think im gonna sell the edelbrock and rebuild on of the qjets. not really woried about the heads would have been nice have gotten beter ones but im going to ask around for a set of L31 heads. i have my eye on a complete engine but at this time i have my doubts about its worth. thanks for the help to bad these heads shure do look good.
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Old 03-07-2007, 08:59 AM
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Maybe we have mislead you a bit on these heads. They are no slouches unless too much metal has been removed. I am running a set on my 327 with EFI and am very happy with them. I have Edelbrock ETec 200 on my 383 with EFI and am happy with them. The ETecs cost me 4 times the big valve Camel Humps and I have to burn premium gas in that motor but that is apples and oranges. If you are planning a street motor to be driven a lot and not much time at the strip, then you will like these old technology heads.

Trees
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Old 03-07-2007, 03:32 PM
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The problem i see with his heads is they were never releaved on the chamber side for the big valve. So the head will not flow as good as it can and maybe worst.
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Old 03-07-2007, 07:03 PM
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Quote:
Originally Posted by excaliberprime
i have a set of sbc heads that i think are 327 heads im not shure. i was told they are called blue boys they have been ported polished hogged out and they seem to have had some of the metal shaved off of the bottom. here are a few picks of the heads. i am building a 350 would it be wise to use these heads. what measurments do i need to make them work as far as how much the valves have been hogged and how much has been shaved off the bottom am i corect in thinking that i will need to adjust my intake to work with these heads. should i just look for anouther pair of heads to use. i had a nova setting in a freinds yard that i was just going to let the guy who had the heads have but when i seen the heads on an engine he was building i told him he could have the nova for the heads just didnt want to walk away empty handed.
You never "adjust" the intake. If enough is taken off to effect the seal then the intake surface of the head should be milled to adjust.
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