302 0r 302 HO
302 0r 302 HO
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Easiest way is the firing order.
HO is (starting from number 1--counter clockwise on the distributor)------- 1-3-7-2-6-5-4-8
Non HO (starting from number 1--counter clockwise on the distributor)-------- 1-5-4-2-6-3-7-8
Facing the front of the engine/truck
the cylinders are number starting from the left side front to back 1-2-3-4
right side front to back 5-6-7-8
later
HO is (starting from number 1--counter clockwise on the distributor)------- 1-3-7-2-6-5-4-8
Non HO (starting from number 1--counter clockwise on the distributor)-------- 1-5-4-2-6-3-7-8
Facing the front of the engine/truck
the cylinders are number starting from the left side front to back 1-2-3-4
right side front to back 5-6-7-8
later
Lead Driver
Joined: Nov 2002
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From: Concord, NC
That's correct, but that doesn't necessarily make it a HO. I think the roller cam motors in trucks were 351 firing order - mass air 302's were definitely 351 order, but not labelled an HO.
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From: shepherd
i had a mass air engine in my 90 and it was definately the 351 order and it was a roller ready block, i just found that out. but it was not an HO. i don't even know if that motor in that truck was the one that came in it but i am positive about the MASS AIR and 351 firing order on it
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Originally posted by EPNCSU2006
That's correct, but that doesn't necessarily make it a HO. I think the roller cam motors in trucks were 351 firing order - mass air 302's were definitely 351 order, but not labelled an HO.
That's correct, but that doesn't necessarily make it a HO. I think the roller cam motors in trucks were 351 firing order - mass air 302's were definitely 351 order, but not labelled an HO.
True. later
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