Any 351 Cleveland guys out there - need to ID block and heads

[Burgs]

Originally Posted by 767Jockey

I need to find an overhead pedal box with a brake and clutch pedal. Any ideas?

Wilwood has a number of different options. This one is standard on the Hurricane kits.

http://www.wilwood.com/Products/005-...mtmc/index.asp

[767Jockey]

Ok guys, here's what I found:

Heads - other than the "2" on the upper rear corner of the head outside the valve cover, the only other numbers I can see (the engine is still in the car) are inside the valve cover in the rocker arm area. Once I took the valve cover off, I found sort of an oblong raised area with the numbers "2H30" inside it. I also saw a circle with the numbers 81357 in it. since the numbers are arranged around the circle, there's no way to tell which number is the first in the sequence. I started with 8 for no reason other than I had to start somewhere. Looking at Autoxmike's post, I don't think I have the right numbers for the heads, as the numbers and format don't seem to match anything. Where else should I look for numbers? Where on the head are the numbers I need?

Block - After removing the starter, I found two lines of numbers. The top line reads "D2AE-CA". Under that it says on a seperate line "2HI" or "2H1". I can't tell if the last character is the letter I or the number one.

What have I got here, guys? Are the heads and block a matched set as delivered from the factory? Please tell me everything you know, no matter how trivial, about this setup. Are the heads closed or open shamber? Is the block 2 or 4 bolt main? If the block contains it's original equipment pistons (which I suspect it does), what is the approximate compression ratio with these heads? What year and model did these heads and block come from? Is there anyting in particular good or bad about the block or heads? Are either of them considered to be desireable for any reason? Any and all info is greatly appreciated!
Doug

[autoxmike]

Originally Posted by 767Jockey

Block - After removing the starter, I found two lines of numbers. The top line reads "D2AE-CA". Under that it says on a seperate line "2HI" or "2H1". I can't tell if the last character is the letter I or the number one.

Is the block 2 or 4 bolt main?

From a quick internet search on the block casting #:

some 2-bolt blocks were manufactured from the same casting as the High Output 4-bolt blocks. Between 1971 and 1974 the production of 2-bolt and 4-bolt engines could have utilized the same casting (D2AE-CA) depending on what was delivered to the assembly line. This casting was called the Cobra Jet (CJ). In the case of the 4-bolt block, they were drilled, tapped, and stamped as a D3ZZ-A part number, were as the 2-bolt was not drilled or tapped, but stamped with a D1ZZ-A part number.

[767Jockey]

Originally Posted by autoxmike

From a quick internet search on the block casting #:

some 2-bolt blocks were manufactured from the same casting as the High Output 4-bolt blocks. Between 1971 and 1974 the production of 2-bolt and 4-bolt engines could have utilized the same casting (D2AE-CA) depending on what was delivered to the assembly line. This casting was called the Cobra Jet (CJ). In the case of the 4-bolt block, they were drilled, tapped, and stamped as a D3ZZ-A part number, were as the 2-bolt was not drilled or tapped, but stamped with a D1ZZ-A part number.

So if I understand correctly, it's essentially the same as the 4 bolt main block, but with two bolt mains?

[autoxmike]

Sounds like it to me! First time I ran across this info was when I googled the casting number when I saw it in your post.

P.S. - 2 of my neighbors are 767 Jockeys

[Woodz428]

Originally Posted by 767Jockey

So if I understand correctly, it's essentially the same as the 4 bolt main block, but with two bolt mains?

Pretty much so, as pointed out they share the same casting numbers on some blocks. Now this is for a standard Cleveland block..there was mention of the XE block which is beefier all around, but regular production ones are even cast for the 4 bolt caps. The difference is, of course, the machining for the extra bolts. Any of the 2 bolt Cleveland blocks I have seen could be converted if someone needed to, in most cases it is unneccesary.

[AK1234]

I have this block in my 73 Pantera and its a 4 bolt block ... I did hear rumors that it has been spotted as a 2 bolt block ... so your on the right track ... also there have been discussions that these CJ blocks are of higher nickel content. Thats a good thing.

My advise .. is to put a set of Eldelbrock aluminum heads and matching intake and you'll have one hell of a ride.