JohnnyIXI

Planning to swap out my 260 for a 351w and want to know the visual differences ide beable to tell at the junkyard? Any help appreciated..

90mustang5.8

the 351 is wider than the 302...just measureacross the intake...i think its 1-1/2 inches wider.

atomsk680

its wider is all i can think of

JohnnyIXI

came accross this online..

302/351W Engine dimensions:

Using the short serpentine water pump both 302/351W are 27-1/2" in length.

302 height = 20-3/4"
351W height = 23-3/4"

302 width = 18-3/4"
351W width = 21"
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4.6L modular engine dimensions:

Both the 4.6L SOHC & DOHC are 28" in length.

4.6L SOHC height = 26"
4.6L DOHC height = 29-7/8"

4.6L SOHC width = 25-5/8"
4.6L DOHC width = 30"

Engine weights (approximate shipping weight)

5.0L 302-345HP GT40 Aluminum Head Crate Engine Shipping Weight = 425lbs
5.0L 302-360/390 HP Z head Crate Engine Shipping Weight = 405lbs
5.0L 302-347CID - 450HP Z head Crate Engine Shipping Weight = 425lbs

5.8L 351 - 385 HP GT40 aluminum head Crate Engine Shipping Weight=545lbs
5.8L 351-392CID 430HP GT40 Crate Engine Shipping Weight=545lbs

7.5L/460CID Super Cobra 550HP Crate Engine Shipping Weight= 670lbs

393Bird

Look for a rise in the block behind the distributor of about 1 inch.