Re: New heads
<span style="font-weight: bold"> As per Mark Jones (VortecPro) and MYSELF, DO NOT GO 2.19 VALVE WITH THE SMALL BORE 396/402'S!!!!! </span>
The Valve are too close to the cylinder wall, and as Mark's own words "FLOW LOSS WOULD BE HORRIBLE". There is no way that this engine would require any more then 2.06 intake for what you're doing.The bigger valve DO help quite a bit, but they need the bigger 4.250+ bore to actually work. The narrow bore of this engine would actually HURT performance. You're far better off doing some port work then paying for new valve and and related machine work.
Now on my lil 402, I used ported sq port head and comp 660 roller. It ran strong, 10.47 in '69 Nova. So I think the cam should be fine for wht your doing, just do NOT open those heads with the small 4.094+ bore.
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'58 Apache pick up restomodding with twin turbo 522
'78 Z28 4sp being restored
'70 W30 convert TRIBUTE
'70 CANADIAN Nova SS396 L78 Pro Street
'69 CANADIAN Nova SS 396/350 hp
'67 CANADIAN Nova SS 427 10 sec. driver
'66 CANADIAN Nova SS Race Car
'69 FIREBIRD Tubbed Racecar
'31 ALL STEEL Chevy P.U. GONE (EX-WIFES NOW)
'61 CANADIAN Pontiac Bubble top 409+/4sp (SOLD)
'78 Z28 32,000 survivor, Og Yellow paint, AC. (SOLD)
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