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Old 12-16-2013, 11:01 PM   #1
BRIAN SEATE
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Default 461 heads

Dad bought a set of stock 461 heads the other day. What Super Stock combos/years will they work with?
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Old 12-17-2013, 12:36 AM   #2
Lew Silverman
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Default Re: 461 heads

Looks like they fit 62-67 327's of various horsepower ratings, Brian, along with about 8 or so other head casting numbers. I'm not quite sure if they are the best choice for a Super Stock combination, as there are aftermarket (replacement) heads that probably flow better. Hopefully someone will be able to give you the flow numbers you're looking for!
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Old 12-17-2013, 12:07 PM   #3
Jody Lang
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Default Re: 461 heads

Quote:
Originally Posted by Lew Silverman View Post
Looks like they fit 62-67 327's of various horsepower ratings, Brian, along with about 8 or so other head casting numbers. I'm not quite sure if they are the best choice for a Super Stock combination, as there are aftermarket (replacement) heads that probably flow better. Hopefully someone will be able to give you the flow numbers you're looking for!
Just curious, what are the "aftermarket" heads that are legal for a 327?
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Old 12-17-2013, 02:27 PM   #4
richie 2
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Default Re: 461 heads

i believe theres a number from World products that's legal replacement for the 462's.
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Old 12-17-2013, 05:58 PM   #5
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Default Re: 461 heads

This is what I looked at, from the 1966 Chevy classification listing, for the 327-300 HP combo in Super Stock -

RHS Cast Iron heads # 12400 & 12402 accepted as replacement head

These heads may be used in SS only, not Stock

Dart Cast Iron heads with cast # 10021070 accepted as replacement head

This head may be used in SS only, not Stock

World Products Cast Iron heads with cast #'s 043600 & 043610 accepted as replacement heads - SS ONLY

(Formatted from Excel spreadsheet, sorry!)
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