Cylinder Heads for a 1969 Barracuda

[Scotty9615]

Hello - Scotty from Canada

Recently purchased a Block only from a 1969 318 5.2L - Casting Number 2536030

My Cylinder Heads are Casting Number 2843675

Everyone is telling me that these are the right Heads. Even various Web sites say this

They don't match - different oil and water passages. I am also told that the correct Cylinder Head Gasket is Fel-Pro 8553PT. It dosent match either.
I believe that Victor Heinz 3536SG matches the block 2536030

Research has told me that casting number 2658920 is also the correct Head

Just a little confused - any and all help is appreciated

 

[JBurch]

Quick question.........

Are you looking for restoration information, or are you looking for what you can bolt together and install in the car??

 

[nm9stheham]

Don't try to match up every water jacket hole on the block to the heads. There are a number of holes in each that are not matched up or will be blocked by the head gasket. The only open water jacket holes between the block, gasket, and head are the ones in the back; the coolant flow is through the block front to back, then up through a few holes in the back, and through the head back to front.

The remaining unused water jacket holes are there to allow the sand to be knocked out of the raw head and block castings when they are made.

The only oil supply holes are the 2 small ones in the block, one each side up above the lifter gallery. The passenger side one is on the upper lip of the block between cylinders 6 & 8, and the driver's side one is on the upper lip between cylinders 1 & 3. Oil drainback is via the pushrod opening IIRC.

And IIRC, the 920's are earlier closed chamber heads. We got soem 675's with a compelte '68 engine so they would be used in '69 too.

Is this a trick question on the head gasket? LOL It has to be flipped the right way for the water passages in the back....

 

[stroked340]

2658920 are '67 heads..the 2843675 are'68-'71 273/318 heads..also used on the '72 to'74 318..

 

[Scotty9615]

Don't try to match up every water jacket hole on the block to the heads. There are a number of holes in each that are not matched up or will be blocked by the head gasket. The only open water jacket holes between the block, gasket, and head are the ones in the back; the coolant flow is through the block front to back, then up through a few holes in the back, and through the head back to front.

The remaining unused water jacket holes are there to allow the sand to be knocked out of the raw head and block castings when they are made.

The only oil supply holes are the 2 small ones in the block, one each side up above the lifter gallery. The passenger side one is on the upper lip of the block between cylinders 6 & 8, and the driver's side one is on the upper lip between cylinders 1 & 3. Oil drainback is via the pushrod opening IIRC.

And IIRC, the 920's are earlier closed chamber heads. We got soem 675's with a compelte '68 engine so they would be used in '69 too.

Is this a trick question on the head gasket? LOL It has to be flipped the right way for the water passages in the back....

 

[Scotty9615]

Thanks very much for your reply and this is the information I was hoping for - wasn't sure so I had to ask the question.
The oil passages are right in the middle (upper & Lower)

"Trick Question? - I believe that the gasket can only go on in one position - Pins

FYI - This 318 block and heads are being used in a Marine application. = very thing else is Marine - Cam

Thanks again for your help