Don Terrill’s Speed-Talk

Thanks for all the great answers. I wound up just selling them

Some pics

I did some research online and it looks fairly straight forward how a welder could fix a damaged head. I was thinking of getting it fixed vs. selling them like they are. What should I expect as far as cost and how they would do it and if I need to get the head surfaced after they finish. The heads a...

1972ho wrote: ↑Tue Jul 09, 2019 7:39 pm That is the casting number for a HIPO 289 2 bolt block should not be 4 bolt main.

Ok. Thanks for that. I read that the hi po 289 blocks were inspected for cracks so they Had fewer imperfections

1972ho wrote: ↑Tue Jul 09, 2019 5:52 pm He might just have one of these SK or XE blocks in it if so it’s a pretty rare deal.

He is giving me a part number of C5AE-6015E for the block

Thank you for that. I had never heard of one and when I googled ‘4 bolt Shelby 289 block’ nothing came up.

Did the 65/66 Shelby GT350 or AC Cobra come with a four bolt block? A guy selling a car says he has a four bolt Shelby block in his car.

Take two engines with same displacement same intake similar or same cams yet two different heads each capable of using the size of engine and cam but one set of heads are highly developed race heads and the other set are ported factory pieces that work very good but might not make as good of power....

Take two engines with same displacement same intake similar or same cams yet two different heads each capable of using the size of engine and cam but one set of heads are highly developed race heads and the other set are ported factory pieces that work very good but might not make as good of power. ...

what happened to porting the cleveland heads and building that? There on the back burner. I still have them but am not sure o want to mess with the heads because the whole M code engine, intake to pan, is all stamp dated within a week of each other so might sell to a restorer of a 70 mustang or Tor...

Obviously don't know what part of the country you are in but most likely there is a good cylinder head man or shop with good performance cylinder head abilities around you. As others here have said, those heads need some pretty important work and parts, so put together an idea (budget) of what you ...

cpmotors wrote: ↑Mon Apr 09, 2018 10:16 pm That looks like more of a sand roll than any actual porting. The valve job and chamber needs attention IMO.

....good to know. Here is another of the chamber

There good for about 550 HP if ported correctly. 270 cfm with about 175-180 cc runner. Biggest gains is sizing Intake bowl to the valve if it has a 2.02 as it is the same size on the 1.90 and 2.02 head ,just the seat cut bigger, Working the Short Turn and doing the chambers is your biggest gains. A...

Milled a lot? Looks like they might have...

More pics. The intake port is 1.1”x2.0”. It looks like they concentrated on the bowl.