In addition you wouldn't be able to use the 400 crank as a "stroker" crank like a SB Chevy as the Pontiac 400 and 350 crank is the same.....
69 Firebird, FINALLY installed the Pontiac 469.
01 Red and pewter GMC Ext Cab SIERRA SLT 4x4
02 Maple Red (maroon) LS1 Trans Am
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69 Firebird, .060 over 455, UD solid roller 254/262 @ .050, Scorpion rockers, home ported 6X-4 heads, Holley 850 DP (bone stock), Holley SD intake, with Summit 3 inch x-pipe and goerlich Xlerator mufflers. 12.27 @ 115mph.
02 Midnight Blue LS1 Ram Air Trans Am WS6 (440 rwhp)
http://firstgenfirebird.org/show/closeup.mv?CarID=642
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