221 stud heads

[Walt Dupont--Me.]

I'm kind of disapointed. I CCed an A head today, casting no. on top inside the curve, (81A-6049A) 80cc, I expected smaller chambers than that. I'll have to dig out a 59AB head and CC a chamber tomorrow. I was kind of thinking about useing these A heads on a Vintage stock car, 59AB factory realieved 276 400jr cam. I guess the only way to get get some decent compression is use the Offy heads. The Speedway book says 9.1 comp on the 276. Im sure the factory relieved will drop it a little. Maybe I could fill the chambers of the A heads with some bondo, what do you think? lol Walt

 

[Kahuna]

Hey Walt
Don't think Bondo will do it, ha ha. Get some of those Canadian C7RA heads
Regards
Jim

 

[av8paul]

I'm kind of disapointed. I CCed an A head today, casting no. on top inside the curve, (81A-6049A) 80cc, I expected smaller chambers than that. I'll have to dig out a 59AB head and CC a chamber tomorrow. I was kind of thinking about useing these A heads on a Vintage stock car, 59AB factory realieved 276 400jr cam. I guess the only way to get get some decent compression is use the Offy heads. The Speedway book says 9.1 comp on the 276. Im sure the factory relieved will drop it a little. Maybe I could fill the chambers of the A heads with some bondo, what do you think? lol Walt

JB Weld

 

[Russ/40]

Fill the heads with Braze

 

[Ol' Ron]

Sounds alittle big Walt, try a differant set of heads.

 

[Walt Dupont--Me.]

I remember back in the 50's a friend stock gye put the heads in his coal furnace, got them hot and melted two sticks of braze in each chamber and then had them milled to make sure they were flat. Wish I had a coal furnace. Maybe I could put them in my barbacue. When your brought up on a farm you use what you can find out behind the barn. ( I got my education out behind the barn and it almost made a wreck out of me) Walt

 

[Charlie ny]

Walt,
If it's a stock car motor and originality isn't an issue could
you make a pair of EAB heads work? The water by pass hole at the
front might be a problem but much less of an issue than filling the
chambers.
JB Weld is a great product but.............it gets hot in there.
Charlie ny

 

[av8paul]

JB Weld is a great product but.............it gets hot in there.
Charlie ny

I was trying to be humerous....guess I have to work on that.

 

[Flathead]

I knew you were joking!

 

[Charlie ny]

Paul,
Me too, I knew you were funnin' !
Charlie ny

 

[flatjack9]

Yup, most that I have checked are 78 - 80 cc's. Look for some 81T heads. Shoould be down around 83.

 

[Jack 34pu]

EAB heads in the 63cc range - (24 stud)

 

[jimTN]

Charcoal grill will work, was used around here to preheat racecar heads to fill.

 

[flatjack9]

EAB heads in the 63cc range - (24 stud)

That sounds awful small. Offy 425's are around 63. I thought EAB's were around 70 cc's.

 

[Walt Dupont--Me.]

Yea, Charlie NY, I've got some EAB heads that CC out to about 63, I've got some 8BA style engines out with those heads. Take 276 with an L-100 cam, Merc intake with a 283 Chevy 2GC carb, and EAB heads, make a snappy engine. And cheap top build. Walt

 

[Craig CT]

That sounds awful small. Offy 425's are around 63. I thought EAB's were around 70 cc's.

Hi flatjack9; You're right stock EAB are 71.