1968 302 motor question

rd

Founding Member

Jan 12, 2000

3,316

63

109

Ocean Springs MS

Jan 3, 2006

#1

• Jan 3, 2006

• #1

I usually hang out at the 5.0 tech area, but thought someone here might know some info.

I just scrounged a 68 Mustang 302 four barrel motor, less intake. I know the previous owner of the yard, and have been looking at it for 2 years. It was complete when he pulled it. He sold the intake I guess.

I got it mostly to have another block to build.

Is there anything special or different about this engine, like the heads, etc?

 

rhyno9

Founding Member

Oct 30, 2002

209

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0

Oswego Illinnoying

Jan 3, 2006

#2

• Jan 3, 2006

• #2

rd said:

I usually hang out at the 5.0 tech area, but thought someone here might know some info.

I just scrounged a 68 Mustang 302 four barrel motor, less intake. I know the previous owner of the yard, and have been looking at it for 2 years. It was complete when he pulled it. He sold the intake I guess.

I got it mostly to have another block to build.

Is there anything special or different about this engine, like the heads, etc?

Click to expand...

Basically the heads and the intake are the 2 unique items that would be worth something.

I believe the heads have a 4v cast by the rockers. Heads are small cc 52-54.

Other than that it is a thick wall cast block which should withstand more abuse than the thin wall roller blocks.

RV

 

xoxbxfx

Founding Member

May 9, 2001

3,959

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0

Southlake, TX

Jan 3, 2006

#3

• Jan 3, 2006

• #3

Honestly you would be better off getting a roller block and building it...

 

fasttback

New Member

Apr 16, 2005

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Northern CA

Jan 3, 2006

#4

• Jan 3, 2006

• #4

I believe the J -code heads are similar to the early 289 versions, with the smaller combustion chamber 53.5-54.5 cc. I know the valves are the same size.

 

M

mr-fixit

Founding Member

Jul 19, 1999

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Malvern,Pa.

Jan 3, 2006

#5

• Jan 3, 2006

• #5

The "J" code 302 4V heads were not the best performance choice, mainly because this was a smog pump engine. To check if you actually have a 68 4V motor, look and see if each cyl. has a threaded hole for a smog line fitting. The '68 302 4V was the only engine in non Calif. cars to get a smog pump. The good news is, that since these were so bad for performance they usually got tossed, so there are a lot of 68 Shelby GT350's running around with different heads, and now Shelby owners are looking for these heads and smog pumps. (the smog lines are being reproduced) So there is a market for the heads.

 

rd

Founding Member

Jan 12, 2000

3,316

63

109

Ocean Springs MS

Jan 3, 2006

#6

• Jan 3, 2006

• #6

Thanks.

I thought the threaded holes for the air injection were in the exhaust manifolds, not the heads. I did not get the exhaust manifolds. I got a rusty left side long tube header and nothing on the right. I will check for numbers, etc, tonight.

 

rd

Founding Member

Jan 12, 2000

3,316

63

109

Ocean Springs MS

Jan 3, 2006

#7

• Jan 3, 2006

• #7

Looked it over a bit closer and pulled a valve cover. It has 4V and 302 cast into the top of the heads. No Thermactor holes. According to my book, these should be the 54 cc chamber heads.

The Block is a C80E. Judging from the head gaskets, it may have been rebuilt. It turns freely, the little bit I tried.

I got it for the block, and hope it's usable. Don't need these heads at the moment. I may try to use the front cover and wp pulley since they are std rotation.

Thanks for the info.