Will these heads work ok ?
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Freshman User
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Will these heads work ok ?
I have a 79 302 block and 69-70 heads the water passages on the top of the heads do no match the ones on the block, I have the ford racing teflon coated head gaskest which match the block. Will these heads work on this block or will I have internal leaks or cooling problems? Will I need different head gaskets? Oh, I will be using the stock intake off my original 72 302 motor. Sorry I can't attach pics so I can't show what I mean.
Thanks
Thanks
Postmaster
Joined: Jan 2009
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I have a 79 302 block and 69-70 heads the water passages on the top of the heads do no match the ones on the block, I have the ford racing teflon coated head gaskest which match the block. Will these heads work on this block or will I have internal leaks or cooling problems? Will I need different head gaskets? Oh, I will be using the stock intake off my original 72 302 motor. Sorry I can't attach pics so I can't show what I mean.
Thanks
Thanks
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
As cast the D0OE heads are nothing too remarkable, probably not quite as good as GT40's but there is good potential. There is a professionally ported set on Ebay now that flow 232/163cfm at 0.500" lift, but there's $2000 in port work and valves in them. By comparison untouched GT40's flow 192/128cfm at 0.500" lift and can be found for a few hundred dollars used, and Dart Iron Eagles flow 256/163cfm at 0.600" lift and cost under $1400 a pair brand new!!
P.S. A lot of people mistakenly think Dart and World are the same but they are not, they're totally different companies.
P.S. A lot of people mistakenly think Dart and World are the same but they are not, they're totally different companies.
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My head have 69 302 cast on them I don't think they are 351 heads so I shouldn't need reducers. It's a daily driver basically stock so I'm not too concerned with porting and such I am mostly worried about the cooling passages not matching up and if that will cause any leakage or over heating issues.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
If using early heads the L shape coolant passage on the ends with an intake that doesn't use the extra bolts these were designed to accomadate, simply plug and seal the holes to prevent leaks and use a regular late model gasket.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
All the early heads have smaller combustion chambers that the late model E7 heads and that's the main reason people use them, 60cc for 351 heads and 58cc for 302 heads, E7's typically measure about 64cc. The 351 heads also got slightly larger valves at 1.84/1.54 vs 1.78/1.45 for the 302 heads and E7 heads. The '69-'74 351 heads are all the same and the best of the old heads, no air injection and lots of meat in the casting for porting, though the pushed in rocker studs were considered weak for high performance use. These can be removed and the heads drilled and tapped for screw-in studs.
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Postmaster
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From: iowa
conanski is a small block windsor database!
They c90e and dooe heads are very similar, and do flow very well with porting. I would say there potential is on par with the gt40's and more than that of the e7te castings. You have a little more port volume, at least on the intake side. The early heads will take a 2.02/1.60 valves but i have seen them rub on each other, and where the seats meet is shape and more prone to cracking. You also have more shrouding with the bigger valves though.
The dart heads are way better than any stock castings. World products leave a lot to be desired imo. I have been working a set for a local racer, the exhaust seat/ blend job is horrible, the guides could be slimmer, and the intake short side has an odd shape, especially on the right hand side of the turn.
I really liked the rhs heads, better quality, less cleanup needed. They have a raised runner but a stock port entry location. The top and side are tapered, so porting is a breeze.
They c90e and dooe heads are very similar, and do flow very well with porting. I would say there potential is on par with the gt40's and more than that of the e7te castings. You have a little more port volume, at least on the intake side. The early heads will take a 2.02/1.60 valves but i have seen them rub on each other, and where the seats meet is shape and more prone to cracking. You also have more shrouding with the bigger valves though.
The dart heads are way better than any stock castings. World products leave a lot to be desired imo. I have been working a set for a local racer, the exhaust seat/ blend job is horrible, the guides could be slimmer, and the intake short side has an odd shape, especially on the right hand side of the turn.
I really liked the rhs heads, better quality, less cleanup needed. They have a raised runner but a stock port entry location. The top and side are tapered, so porting is a breeze.
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Update???
Senior User
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I was told by an old timer that a set of 68-69 302 4 barrel heads were awesome heads, but aren't talked about much and are hard to come by. Lower combustion chamber volume, generous port volume and no smog holes. I have never see a set.
Postmaster
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I have a set of DOOE heads on my 302 , they came off a 69 351 mach l , they don't have the air injection holes or ports , they have 1.94 intake - 1.60 exhaust , and have screw in studs , they were like this when i got them . Not sure if they came like this in 69 or someone put bigger valves in and tapped them for screw in studs ?? ... Lew
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I don't think ford ever put 1.94/1.60 valves in a production windsor head. Some 351 got 1.84/1.54, most windsors got 1.78/1.46. GT40's have 1.84/1.54 and GT40P's have 1.84/1.46. FRPP aluminum GT40's have 1.94/1.54. Original DOOE's on a 351 were 1.84/1.54, but when people freshend them up for performance would put chevy valves in them, 2.02/1.60 will hit, 1.94/1.60 won't and there is a guy around my way that will cut down a 2.02 to a 1.98 to put in a windsor head. I have a set of E7's with 1.84/1.54 for factory stock. I'm pretty sure the only head that had screw in studs from the factory were the HIPO's on 289's, so folks would do that also when working them for performance.
Elder User
Joined: Jan 2007
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From: MI..."near" Dearborn...
Location???
Can you add you location to your info...that would help us out...
There are 3 sets here locally on craigslist.detroit...ranging from
$40.00 in sitting-on-the-shelf-for-40-years-condition all the up to $150.00 FRESH...
Keep looking...
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