Heat riser -fitment big block vs small block - Team Camaro Tech
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post #1 of 5 (permalink) Old Aug 25th, 18, 04:41 PM Thread Starter
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Heat riser -fitment big block vs small block

Just curious if a big block heat riser will fit on small block exhaust manifolds?

Kelvin
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post #2 of 5 (permalink) Old Aug 25th, 18, 04:56 PM
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Re: Heat riser -fitment big block vs small block

Only small block manifold that a big block heat riser will fit would be the 2 1/2 inch manifolds used on 60's 300 horse 327 and similar high horsepower Corvettes. All the other small blocks had smaller heat risers.

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post #3 of 5 (permalink) Old Aug 25th, 18, 09:55 PM Thread Starter
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Re: Heat riser -fitment big block vs small block

Just making sure that I understand this correctly, a big block heat riser will not fit my 69 z28s exhaust manifolds.

Kelvin
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post #4 of 5 (permalink) Old Aug 25th, 18, 10:16 PM
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Re: Heat riser -fitment big block vs small block

That is correct. A Z28 heat riser is smaller than a big block heat riser.

Jon N

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post #5 of 5 (permalink) Old Aug 26th, 18, 01:48 AM Thread Starter
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Re: Heat riser -fitment big block vs small block

Thanks Jon! Appreciate the info

Kelvin
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