Small Block Head identification number
- Thread starter TF360
- Start date
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PRH
Well-Known Member
They are J heads.
Doubtful, but possible. What color are your valve springs?
Normally seen as 1.88-1.60.
That won't help, I guess you will have to measure the intake valve. No big deal anyway, J heads flow well with either valve.
Not engine, they started on 71 360's with 1.88 intakes, 340's and 340 T/A with 2.02 intakes. Then in 72 360 and 340 with 1.88 intakes. I think they were gone in 73.
How about a picture of the heads in question????
Wyrmrider
Well-Known Member
depending on your build you might be better with 1.94 chevy valves
2.02 like some ,ore bowl work
in either case go 11/32 or 5/16 valves if you plan any revs qctually cheaper
2.02 like some ,ore bowl work
in either case go 11/32 or 5/16 valves if you plan any revs qctually cheaper
The 915 360 head started life on 1970 340 4bbl and 6 pac/6barrels. In 1971 the 360 appeared with a 2 barrel carb. Kim
Mopar Wizard
Well-Known Member
Judging by the casting date 12/10/69 they should be 2.02 valves and have a J U O or Z cast on them.
Mopar Wizard that's what I was looking for! I have had the heads since about 1985, and I know they came off a Cuda that was parted out. It's been so long, but I want to say it might have been a T/A 340. What numbers would I see there? Anybody know?
Post some pics. Kim
PRH
Well-Known Member
The TA heads have relocated pushrod holes for the intakes.
Very easily identified visually.
Very easily identified visually.
PRH
Well-Known Member
If you are running them with std rockers, they’re not TA heads.
Simple as that.
Just look at the area where the intake pushrods go in the pic I posted. That’s a TA Head.
That’s what makes a TA head.......a TA head.
If it’s not like that, it’s not a TA Head.
You can wish and hope all you want, but if they’re not like this:
Then they’re not TA heads.
Simple as that.
Just look at the area where the intake pushrods go in the pic I posted. That’s a TA Head.
That’s what makes a TA head.......a TA head.
If it’s not like that, it’s not a TA Head.
You can wish and hope all you want, but if they’re not like this:
Then they’re not TA heads.
pishta
I know I'm right....
Are there any factory 2.02 heads, I mean the only way they came was 2.02? I think they were all 1.88's and some were ground to 2.02. Seems all "2.02" heads could be found with 1.88's at some point in their lives...? Hard to add bowl metal in the casting, easy to grind it (bigger).
PRH
Well-Known Member
Unless I’m mistaken, X heads(2531894) only came on 340’s..... and only with 2.02’s.
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