Are these heads the desirable ones? http://cgi.ebay.com/ebaymotors/302-...008QQitemZ180153917140QQrdZ1QQsspagenameZWDVW
From the description yes... I wish they had better pics though. The right heads will have 351 cast into the iron large and in your face. It bothers me when they put "302/351" because 302 heads were made in 70 as well. A less knowledgeable person, or a shady person, could list D0xx heads from a 302 and just word it to look like they are D0xx 351 heads. Since I don't know the numbers well enough, or trust eBayers well enough... I have to see the pics. Then I save the pics from auctions I win, so there is a way to prove/identify what I am expecting.
This bothers me... The 70 351w heads would have 2 extra bolt holes per head. They are right at the water ports. Red marks show obvious intake manifold bolt holes, and blue shows where there should be two more holes. This is a piece of the actual auction pic!
Those are the D0OE 302 heads, but with the work done on them, they're still a good buy at the starting price.
That's what I thought after not seeing the extra intake bolts. I think alot of folks post D0 302 heads on eBay hoping to get 351w prices from someone who doesn't pay attention. I believe that probably as many as 75% do it on purpose, the other 25% out of ignorance themselves, thinking a D0 head is a D0 head. Fwiw, I don't think the heads are worth that much as a 302 head, unless that is exactly the head you need. If you are looking for performance, the 351w head is the one to get if you want to stay with a stock casting.
Putting together a motor for my Comet. Mostly stock but just want a little extra kick. Thinking of using stock exhaust manifolds so cant go too hipo.
If those are 70 302 heads they will have 58.4cc chambers.Good for bumping compression up if you are useing a flat top piston.You would probably do better with a set of Dart iron eagles (fairly cheap I believe new)Better exhaust ports.Just my 2 pennies.351 heads made after 74 have the same intake bolt pattern as 302s.Pre 74 have the L shaped water passage with the extra bolts.
The 69 351 4v windsor had the best heads and 290 horse. compression was said to be 10.7to 1...had one in my 67 mustang years ago....sold it to buy christmas presents for the girlfriend in 1987. It was a fastback and i had all the shelby stuff...4 speed and 9 inch with 4;11's...girlfriend is now the wife of 17 years...maybe I should have kept the car!!! ANYHOW.....on ebay there is a set of 1969 4 bbl windsor 351 heads.THE EBAY # IS....( 200146742236 ) good luck!
69 used a 58cc head. However 70-76 used the same exact head, only 60cc chambers. So they are pretty much the same option. Just 2cc more chamber. The 74-76 just have more emisson plumbing to contend with. Therefore 69-73 are all good options.
If I recall correctly, the giveaway between the 302 and 351 heads (D0OE's) is the chamber shape. The Windsor had the horseshoe chamber and the 302 was triangular.
69 to mid-76 heads have larger valves, ports, and relatively small chambers. Best factory heads you can get once they are ported. They come cast with a huge knot in the exhaust. It is solid iron, so it grinds out with time and patience.
That is probably why the auction doesn't have a pic of the chamber side of the heads! They say they are ported, but have no pics of the ports. If I was interested in heads that someone had ground, I would want detailed pics of the grinding. No pics of casting marks... Fresh paint, but they have "30 runs" on them... another suspicious sign. This seller knows what they are doing.
Agreed.............. But at the starting price, they're not a bad buy for the work that's listed was done.
