Truffles

Simple (foolish?) question here... what do non-stock heads give you?

I'm looking at rebuilding one of my 351's, and I figured I'd try to get it running efficiently on gas, yet still have "fun" power. Would changing the heads make a difference in this area, or not enough of a different over stock heads?

-Steven

brenx

Depends on what your after. In mild combo's the 302CC heads are good. Then if you have more $? Edelbrock, CHI and AFD all have cylinder heads that will control detonation better, disperse heat faster , have a better torque curve and consequently make a little more power.

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XB Fairmont (street car) 11.07@123.02mph.

xrglen

i put heads that flow 500hp on a motor with a cam of 280-290 and 212-224@50" or 2200-5000 and it ran great with good economy. they were 2v cc with backyard port job. i say go for it. cheers

Pilch

What kind of gains did you make? What heads were you running previously?

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XC Falcon Sedan, monza red/jet black, 351C, twin 2.25" zorst, T5 V8-spec with CRS bell-housing, AU thermofans, 3.23 LSD diff, dual fuel, rally-pack spec, black/red interior, cruise control, sports seats, 17x8 ROH Drift-R's.

xrglen

256rwhp 12.86 @ 104mph with 2500 stall and 3.5 b/w diff in XE falcon.
with the standard heads it was ok but not as torquey. cheers