MustangWorks.com : Ford Forums - View Single Post - What's the biggest size AFR heads that one could bolt to a "stock" 302?

crazypete · 06-16-2004, 08:12 AM

Yeah, I've heard a lot of complaints saying that the AFR flow numbers are skewed. I found this article

http://www.fordmuscle.com/archives/2...r/index2.shtml

And it seems that the TF heads beat the AFR's in intake but lose to them in exhaust. I have not been able to find any other direct comparisons on near stock engines... though I am still leaning torwards the AFR's due to the fact that they pre-port their heads and that would be one less thing that I would have to worry about.

For the moment.... I picked up that set of 351C heads for $100 last night! They need some serious wirebrushing cause they look like they have been sitting for quite a while. The intake ports are clean but the exhaust ports have flaky rust inside that seriously needs removal and there is carbon caked penny-thick in the combustion chambers. Other than that, there are no serious show-stoppers. I'm gonna get medival on these things while I contemplate the AFR's to come this winter.

06-16-2004, 08:12 AM	#7
crazypete Registered Member Join Date: Sep 2002 Location: Boston Posts: 592	Yeah, I've heard a lot of complaints saying that the AFR flow numbers are skewed. I found this article http://www.fordmuscle.com/archives/2...r/index2.shtml And it seems that the TF heads beat the AFR's in intake but lose to them in exhaust. I have not been able to find any other direct comparisons on near stock engines... though I am still leaning torwards the AFR's due to the fact that they pre-port their heads and that would be one less thing that I would have to worry about. For the moment.... I picked up that set of 351C heads for $100 last night! They need some serious wirebrushing cause they look like they have been sitting for quite a while. The intake ports are clean but the exhaust ports have flaky rust inside that seriously needs removal and there is carbon caked penny-thick in the combustion chambers. Other than that, there are no serious show-stoppers. I'm gonna get medival on these things while I contemplate the AFR's to come this winter. __________________ 91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior Last edited by crazypete; 06-16-2004 at 12:49 PM..