this is an interesting subject. I went to an auction a month or so ago, and purchased a set of Yates C3H heads. If you guys arent up to date, these are the bad boys of Ford heads...they are basically cleveland heads cast in aluminum. The flow figures were something like 445 intake, 320 exhaust, and had 2.18" titanium intake valves. Stole them for $800, as they had less than 500 miles on them at Talladega (were on one of the Jack Roush winston cup cars for testing). I should have kept them, but someone offered me more than I what I had paid after the auction was over. BTW I also run Victor Jr heads on the bracket mav. I run '75 351w ported heads w/1.94 stainless undercut intake valves and 1.50 stainless straight-stemmed exhaust valves-1.48 springs (140 seat 280 open), titanium retainers/steel 7* locks on the turbo car. Decided to stay with Iron on this car as I already had them, and had limited experience with milling, drilling, and cutting for bigger valves/installing hard seats. It was a learning experience more than anything. They replaced worn-out '68 302 castings that had been on 4 different cars.
Anyone heard anything on the Avenger heads? 58cc chambers, 2.02/1.60, supposed to outflow just about everything stock for stock (within reason...i'm not going to compare them to Nascar heads!). Found them online for a lil under $1200. Be interested to know if anyone has used them.
Read an interesting article not long ago (don't remember where) that interviewed a famous head porter. He prefers not to use 2.02 valves on 4.0 inch bore engines. Says the cylinder walls shroud the large valve so much that the flow in that area is useless unless your running a really high lift, long duration cam as found in a race only engine. Supposedly that's what the Twisted Wedge heads are trying to get around. I haven't used Twisted Wedge but I've heard their low RPM torque leaves a little bit to be desired. Has anyone here used them?
My girlfriend has the TW heads on her car. Of course, it's fuel injected, so bottom end is boosted a little bit anyways...but they don't seem to make a ton of low end. Top end, however, is fantastic...even with a relatively mild cam (~1/2" lift)
heads for sale I know of a guy with a set of SVO GT40X heads for sale complete with ARP head bolts and pushrods(pushrods from a newer mustang roller)FMS 1.72 roller rockers,all for 1,000 bucks, he claims they only have about 15,000 miles on them, I was going to buy them but not in my budget at the moment if your intrested let me know I'll give you his email address.
my brother used a set of Twisted Wedge heads on his street motor and they were excellent street heads......not the best for racing though.....the bad thing is your valve lift is restricted due to the valve design.....
AFR 185's - 58 cc, exhaust ported for nitrous (on a 347 c.i.). I won't even try others...these work great with MY particular cam and CR (11.1:1). I practically gave the ported/polished Windsor Jr's away the day after the install. My $0.02
In St. Paul, MN I suppose The cost to ship them wouldn't have been worth it (on these particular heads). Note: I'm not saying ALL Jr's are bad...all I can go by is my own experience. I really didnt' like the way the guy ported mine - and that was AFTER I'd paid for the heads ($700). Not many recourse options by then.
max-power, I have good set of street heads that you could come and pick-up, saving shipping costs. I could meet you in Rochester. They are 68 heads with 58cc chambers, 1.94 intakes, 1.5 exhaust, screw in studs, hardened guide plates, dual springs and associated retainers/keepers, will fit 302 and 351 (drilled for 351) and the exhaust ports have been lightly ported (thermacter smog "bumps" removed). Used for one summer. You should be able to clean them up, repaint them and go. I don't see any defects but there is no gaurantee, so keep that in mind if you are interested. 320.00 for the set! I know I posted these in the past but I can't remember if it was you!
