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Old 10-08-2011, 07:56 PM   #1
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Boss 302 long block ?

I've done some searching on the forum & on the web & really haven't found an answer yet. I want to know if the stock or stock style efi would fit on the boss 302 create engine. I've been thinking of that engine with a tfs intake in my 95 gt. I want to keep the stock style efi & have the 4 bolt main ford block. I realize that there maybe others out there with 4 bolt mains but I really want to stick with a ford block. I'm sure someone here will be able to help me out with this minor dilemma of mine.
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Old 10-08-2011, 11:00 PM   #2
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Re: Boss 302 long block ?

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Originally Posted by BigRed1781 View Post
I've done some searching on the forum & on the web & really haven't found an answer yet. I want to know if the stock or stock style efi would fit on the boss 302 create engine. I've been thinking of that engine with a tfs intake in my 95 gt. I want to keep the stock style efi & have the 4 bolt main ford block. I realize that there maybe others out there with 4 bolt mains but I really want to stick with a ford block. I'm sure someone here will be able to help me out with this minor dilemma of mine.

Yes, the Boss 302 block will work and it is less expensive than aftermarket blocks.
It uses the same components as the standard 302 block.
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Old 10-08-2011, 11:25 PM   #3
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Quote:
Originally Posted by Trojan Horse

Yes, the Boss 302 block will work and it is less expensive than aftermarket blocks.
It uses the same components as the standard 302 block.
Trojan, hate to be the bearer of bad news but the boss block is more expensive than the aftermarket blocks. The boss short block is 4500 whereas most aftermarket long blocks are the same price.
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Old 10-08-2011, 11:45 PM   #4
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Re: Boss 302 long block ?

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Originally Posted by 93slowstang View Post
Trojan, hate to be the bearer of bad news but the boss block is more expensive than the aftermarket blocks. The boss short block is 4500 whereas most aftermarket long blocks are the same price.

The Boss "Block" can be bought for around $1500-$1600. Dart and other aftermarket blocks start around $2000.
Boss Block
Dart Blocks

Boss "shortblocks" start around $4200 for a 331 CI and run up to $4400 for a 427 CI. The Dart shortblocks start at $4400 and go up to $6000 for a shortblock.
Boss Shortblocks
Dart Shortblocks

Depends on where you look I guess.
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Old 10-08-2011, 11:45 PM   #5
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Quote:
Originally Posted by 93slowstang

Trojan, hate to be the bearer of bad news but the boss block is more expensive than the aftermarket blocks. The boss short block is 4500 whereas most aftermarket long blocks are the same price.
Think I saw the short block(Boss) for $1700 in MM&FF in one of the bigger 2-page ads. I'll look later
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Old 10-08-2011, 11:50 PM   #6
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Quote:
Originally Posted by Trojan Horse

The Boss "Block" can be bought for around $1500-$1600. Dart and other aftermarket blocks start around $2000.
Boss Block
Dart Blocks

Boss "shortblocks" start around $4200 for a 331 CI and run up to $4400 for a 427 CI. The Dart shortblocks start at $4400 and go up to $6000 for a shortblock.
Boss Shortblocks
Dart Shortblocks

Depends on where you look I guess.
I was looking at the dss and chp blocks in comparison. Doesn't dart use the boss block?

---------- Post added at 11:50 PM ---------- Previous post was at 11:49 PM ----------

Quote:
Originally Posted by deadsp0t

Think I saw the short block(Boss) for $1700 in MM&FF in one of the bigger 2-page ads. I'll look later
That's more than likely the bare block.
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Old 10-09-2011, 12:04 AM   #7
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6600 for a all alloy dart long block i think i saw on the net one day when i was surfing
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Old 10-09-2011, 04:25 AM   #8
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Awesome, thanks. I've been searching for ever trying to figure that out. Should have came here first. I want sure because the cooling passages on the boss block looks different than the standard 302 h.o block.
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Old 10-09-2011, 05:31 AM   #9
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Re: Boss 302 long block ?

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Originally Posted by 93slowstang View Post
I was looking at the dss and chp blocks in comparison. Doesn't dart use the boss block?
No, Dart uses their own block.
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Old 10-09-2011, 05:37 AM   #10
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Re: Boss 302 long block ?

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Originally Posted by BigRed1781 View Post
Awesome, thanks. I've been searching for ever trying to figure that out. Should have came here first. I want sure because the cooling passages on the boss block looks different than the standard 302 h.o block.

The Boss block has Siamesed cylinders, so the cooling passages will be different.
Note: The block is also set up for 1/2" head bolts, so most stock heads will not work without modification.
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Old 10-09-2011, 06:06 AM   #11
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Awesome thanks for all the info
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Old 10-09-2011, 06:33 PM   #12
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Quote:
Originally Posted by 93slowstang

I was looking at the dss and chp blocks in comparison. Doesn't dart use the boss block?

---------- Post added at 11:50 PM ---------- Previous post was at 11:49 PM ----------



That's more than likely the bare block.
I believe you are correct sir
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Old 10-09-2011, 07:30 PM   #13
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Quote:
Originally Posted by Trojan Horse

The Boss block has Siamesed cylinders, so the cooling passages will be different.
Note: The block is also set up for 1/2" head bolts, so most stock heads will not work without modification.
So will heads for a 302 h.o. (like trick flow, edlebrock, ect) work on the boss block or are there specific heads designed to work on it?

---------- Post added at 08:30 PM ---------- Previous post was at 08:23 PM ----------

Never mind, I just answered my own question. I read the specs on the block. They do require specific heads. Wasn't the original boss a 302 windsor with cleveland heads?
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Old 10-09-2011, 07:42 PM   #14
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Re: Boss 302 long block ?

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Originally Posted by BigRed1781 View Post
So will heads for a 302 h.o. (like trick flow, edlebrock, ect) work on the boss block or are there specific heads designed to work on it?

---------- Post added at 08:30 PM ---------- Previous post was at 08:23 PM ----------

Never mind, I just answered my own question. I read the specs on the block. They do require specific heads. Wasn't the original boss a 302 windsor with cleveland heads?
Yes, the original Boss 302 had the 351C 4V heads.
The Boss Block uses 1/2" head bolts, where the standard 302 uses 7/16" head bolts.
I believe most aftermarket heads that are drilled for 1/2" head bolts would probably work or could easily be made to work.

You would just have to check the heads/gaskets and make sure the water jacket holes lined up for proper cooling.
It is possible to put the 351C heads on a standard 302 block by drilling a coolant hole and using stepped head bolts, so I don't see why it would take much effort to use an aftermarket head with 1/2" bolt holes on a Boss Block.

It is what rodders do after all. They find ways to make things work.
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Old 10-09-2011, 08:14 PM   #15
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I have a question. What does the 4v stand for. I had a 351 4v in a f250. It didn't have 4 valves so I'm not sure what the 4v stands for.
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Old 10-09-2011, 08:23 PM   #16
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Re: Boss 302 long block ?

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I have a question. What does the 4v stand for. I had a 351 4v in a f250. It didn't have 4 valves so I'm not sure what the 4v stands for.
4 barrel carburetor.
It's a higher flow rate designation.
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Old 10-09-2011, 08:26 PM   #17
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Ah ha, 4 venturi. It's so obvious. Open mouth insert foot.
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Old 10-09-2011, 09:25 PM   #18
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Lol!
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