Cam/heads swap...how much will it pick up?
08-31-2010, 07:09 AM
#1
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Cam/heads swap...how much will it pick up? 6.0 LQ4, stock 317 heads, stock bottom end, with a Comp 218/226 .526/.536 112 cam (almost the same as the GM hot cam) and 750 Holley to....
F14 cam (232/234 .598/.598 112), stock 243 heads (free), Victor Jr EFI, 1000 cfm TB, 42 lb SVO's.
Power gains? The car weighs 3600 lbs, has a 4000 stall stall, and 4.56 gears. With the 218/226 cam and carb, it went 12.0@112 in the heat, running out of usable gear.
F14 cam (232/234 .598/.598 112), stock 243 heads (free), Victor Jr EFI, 1000 cfm TB, 42 lb SVO's.
Power gains? The car weighs 3600 lbs, has a 4000 stall stall, and 4.56 gears. With the 218/226 cam and carb, it went 12.0@112 in the heat, running out of usable gear.
08-31-2010, 07:25 AM
#2
I highly recommend milling the 243 heads on a LQ4 shortblock. They have a dished piston. I'm taking .035" off mine. I'm getting conflicting numbers, but should be 10.7-11:1, find for pump gas.
