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Dumb question alert.
#1
how do you tell the difference between a 302 and 289 block thanks.
Life is short------drive your bronco everyday!
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#2
As far as I know the blocks are the same. The only difference between the two was the stroke length. It should have a casting number under the intake as to which it was from the factory. You can make a 289 a 302 by changing the crank and vice versa. You can also make either a 347 by doing the same thing plus .030" over, I think.

Tim
74 Bronco Ranger halfcab w/toys: lockers f&r, wristed arm, C4, D20, hyd assist steering, 37"MTRs, warm 302. Capability, that's what I'm talkin' bout.
[Image: 2rwp56f.png]
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#3
thanks
Life is short------drive your bronco everyday!
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#4
Okay so I looked all over the block and all I could find were these numbers
DI0-8015-AA. On the heads were the numbers 351. Any help? Thanks
Life is short------drive your bronco everyday!
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#5
The casting on the block designates it as a 302 block. Most all the 289's were C6-C5 and prior castings. The 302 began with the C8 casting and progressed.
'72 TBA...
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#6
so its a 302 block with 351 heads?
Life is short------drive your bronco everyday!
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#7
Probably. Just means its been rebuilt once already. I ran that combination on a previous engine.

Tim
74 Bronco Ranger halfcab w/toys: lockers f&r, wristed arm, C4, D20, hyd assist steering, 37"MTRs, warm 302. Capability, that's what I'm talkin' bout.
[Image: 2rwp56f.png]
Reply
#8
thanks. Tim
Life is short------drive your bronco everyday!
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