4.9L performance

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Jan 31, 2002 | 08:40 AM

dsc

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From: Maryland

4.9L performance

[updated:LAST EDITED ON 31-Jan-02 AT 10:13 AM (EST)]I completly rebuilt my 4.9L. It is completly stock and so is the truck. Timing set correctly etc, no vac leaks runs fine. I thought I would get a little more performance. I am thinking about changing it out to a V8. It is going to be a daily driver and I am goin to pull a 8/10 trailer once a month. What really should I expect from this 4.9. Thanks

Jan 31, 2002 | 11:26 AM

PAUL_2

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4.9L performance

Its hard to beat the 4.9L as far as towing & hauling goes . The key to getting the most out of the engine is the correct rear axle gearing . Most are 3.08 which is fine for mileage & light towing , but it leaves a lot to be desired if you have to tow up hills etc . Even going to 3.55 or 3.73 makes a difference .

Jan 31, 2002 | 03:20 PM

DrFord

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4.9L performance

if you are thinking about putting a 302 in the truck, I have a feeling that you will be dissapointed. the 300 will out pull a 302 any day of the week. although the 302 makes excellent high rpm power, it doesn't have the low end torque of a 300.
when push comes to shove, the 300 will get down and work like a mule.

Jan 31, 2002 | 06:46 PM

dsc

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From: Maryland

4.9L performance

[updated:LAST EDITED ON 31-Jan-02 AT 07:49 PM (EST)]Thanks for the replys. I think is is all in my head. My other truck is an SUV with a 5.9L I think that is my problem. On the 300 I have new carb,complete overhaul of the eng, new cam (stock)30 over bore, Valve job, new Pistons,everthing is new. MSD 6a check my gallery

Feb 1, 2002 | 08:21 PM

billyb

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4.9L performance

I swapped out a six in a my 85f150 to a 302.BIG MISTAKE.
the eight is smoother on the highway, but the six is a puller.
as stated, the six is a mule. the axle ratio is something to consider.

Feb 2, 2002 | 02:02 AM

midnightrunner

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4.9L performance

I agree i have a 96 150 4x4 300 and a older 302 truck. The gears are the key my 300 has 4.56 witch is the lowest u can fit in a d44 it pulls like a tractor no stoping it

Feb 2, 2002 | 07:37 PM

wildjon300ci

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From: Conyers

4.9L performance

There's alot of thing to do to that 300. 4bbl intake, header or the cast-iron manifolds off a 1987+ EFI 300, Igniton like you hav, 270* cam or more if your brave and straight timing gears like Cloyes, and rollor rockers and even porting & polishing the head.