4.9 to 5.0

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Jun 12, 2013 | 04:24 PM

austinlittle34

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4.9 to 5.0

Hey guys I got a 1990 f150 with a 4.9 efi and I'm wanting to put my 88 5.0 carbed motor in it I was wondering if it will fit the 4 speed that was on the 4.9 and are the motor mounts the same. Thanks.

Jun 12, 2013 | 04:37 PM

BigBlockF350

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Not trying to bash your idea, but why would you want to swap out a 4.9? The 4.9 will get better MPG, and it makes torque at lower RPMs.

Should fit the 4 speed as far as I know.

Jun 12, 2013 | 10:59 PM

Ducky F150

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the mounts arent the same plus you have to replace the mount towers too the tranny will bolt right up

Jun 14, 2013 | 10:08 AM

austinlittle34

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Quote:

Originally Posted by BigBlockF350

Not trying to bash your idea, but why would you want to swap out a 4.9? The 4.9 will get better MPG, and it makes torque at lower RPMs.

Should fit the 4 speed as far as I know.

Because my 4.9 I dropped 2 grand in the motor its cammed over with port and polished head and oversized valves and not impressed at all 4.9 are built for torque and that's it .

Jun 14, 2013 | 10:10 AM

austinlittle34

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Quote:

Originally Posted by Ducky F150

the mounts arent the same plus you have to replace the mount towers too the tranny will bolt right up

Thank you
That's what I wanted to know

Jun 14, 2013 | 03:08 PM

85e150

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Quote:

Originally Posted by austinlittle34

Because my 4.9 I dropped 2 grand in the motor its cammed over with port and polished head and oversized valves and not impressed at all 4.9 are built for torque and that's it .

Cammed, port and polish....what about intake and exhaust?

If you have a beefed up 300 with a 4bbl and header along with the cam and P&P, and you are not happy with it, why do you think you will be happy with an '88 carb'd 302? It will rev out and have more top end horsepower, but it will be pretty soft on the low end compared to the 300.

If you are looking for a dramatic power increase, you should think stroker or 351W or stroker 351W.

JMO.....