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#1 |
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Join Date: Jun 2011
Location: Langley (no igloos), British Columbia, Canada
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The Edelbrock 60547 has a 315 runner and is the same as the GMPP "401" head both being Rectangle Port and Legal. The Edelbrock 60447 has a 290 Oval Port runner, but is listed from suppliers (Summit & Jegs) as NHRA Legal and is described as having 2.19 - 1.88 valve seats. Obviously there is more to this, than I would be ready to assume. Could make quite a difference on a 325-350-360HP combination if its reality. MB.
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#2 |
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Isn't this for Super Stock only though?
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Bobby Lundholm 3516 G/SA |
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#3 |
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per Edelbrock's website, the rectangle port is legal stock and ss, the oval port is super stock only.
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Chad Rhodes 2113 I/SA |
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#4 |
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60447 is for the 396/325/350 HP combo's for SS only. Too bad thought I was getting some aluminum heads.
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Bobby Lundholm 3516 G/SA |
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#5 |
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The 60547 heads on summitracing.com says the spark plug hole is moved closer to the combustion chamber by .150 and the NHRA rule book says it has to be in the same location. Not sure how it's an accepted product
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#6 |
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#7 | |
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Billy Nees 1188 STK, SS I'm not spending 100K to win 2K |
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