What the heck is a 255 V-8

tireburner163 · 11-05-2001, 12:22 AM

I found junked 1981 Mustang GLX. I was going to buy it a use it as a parts car for my V-8 swap. But I ran the VIN and found out it is a 4.2 liter(255cid). About all I know about them is that they make 120HP. Are they a de-stroked 302 or something. Can I bore it or stroke it back to a 302? Is the intake, distributor, heads, exc. interchangeable with a 302? Can I make any sort of power with this engine?

------------------
THE SLO PONY
1992 Ford Mustand LX. 2.3 liter four-banger, auto. Future mods: V-8 swap.

Fly it loud, Fly it proud!!!

If it ain't broke, you ain't tryin hard enough

Unit 5302 · 11-05-2001, 12:26 AM

Actually, I think they make more like 117hp or something like that, or was it 113hp? It's a debored 302. Pathetic heads, pathetic intake, carb, everything. It was Ford's attempt at better fuel economy and emissions. It failed miserably. The parts are interchangeable, but I don't know if you could bore it back. That would probably require new sleeves. Doesn't matter, it's not worth the money.

1980convertible · 11-06-2001, 04:34 AM

My old convertible had the engine and if you are smart you will trade it in for a 302...everything bolts the same but I found that with the 255 I was changing the head gasket and heads a little more than I liked..they are very under-powered and very...welll...retarded to say the least.

11-05-2001, 12:22 AM	#1
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	What the heck is a 255 V-8 I found junked 1981 Mustang GLX. I was going to buy it a use it as a parts car for my V-8 swap. But I ran the VIN and found out it is a 4.2 liter(255cid). About all I know about them is that they make 120HP. Are they a de-stroked 302 or something. Can I bore it or stroke it back to a 302? Is the intake, distributor, heads, exc. interchangeable with a 302? Can I make any sort of power with this engine? ------------------ THE SLO PONY 1992 Ford Mustand LX. 2.3 liter four-banger, auto. Future mods: V-8 swap. Fly it loud, Fly it proud!!! If it ain't broke, you ain't tryin hard enough

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11-05-2001, 12:26 AM	#2
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Actually, I think they make more like 117hp or something like that, or was it 113hp? It's a debored 302. Pathetic heads, pathetic intake, carb, everything. It was Ford's attempt at better fuel economy and emissions. It failed miserably. The parts are interchangeable, but I don't know if you could bore it back. That would probably require new sleeves. Doesn't matter, it's not worth the money.

11-06-2001, 04:34 AM	#3
1980convertible THE Member..hehe Join Date: Mar 1999 Posts: 24	My old convertible had the engine and if you are smart you will trade it in for a 302...everything bolts the same but I found that with the 255 I was changing the head gasket and heads a little more than I liked..they are very under-powered and very...welll...retarded to say the least.