351 w questions
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Senior User
Joined: Aug 2004
Posts: 264
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From: Tulia, Texas
351 w questions
hey fellas,im sure youve been asked this a million times but ive dug deep back into this forum and cant find the answer i needed so i just figured id ask....i have a really nice '82 ford f-150 thats got the old 351 w with 2 bbl carb. its always been a dog but has always run very well..ive had plain jane stock 302's blow me right off the road and i cant figure out why this enging is so weak,it was rebuilt 5 years ago and still has under 50,000 miles on it,burns no oil nor smokes..its the origional engine for this truck but my question is i used to have an '84 f-150 with the 351 ho in it and it was nothing short of a little street rod,it had 3 times the power that this one does so ive recently bought an '85 351 ho to put in my old '82 and i was wondering what the pros and cons were of this newer ho as compared to the older 351 and why there is so much of a power difference...whats the difference internally? do they both have the cupped low compression pistons? anything you guys could help me with would be greatly appreciated as i get started on installing this h.o.
john
john
Fleet Mechanic
Joined: Jul 1999
Posts: 1,360
Likes: 1
From: Iowa
What gear ratio does your '82 F150 have? That could play an important part of why your truck feels sluggish. I had a '78 F150 with a 460, but it had 2.75 gears. Great on the interstate, but I do 90% of my driving in town, and I tow, so those gears were a real drag.
Posting Guru
Joined: Mar 2006
Posts: 1,526
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From: fargo, nd
if youre going through all the trouble of swapping engines, and since its a carb vehicle, why not go with a 460 and c-6? a whole lot more power, even more power potential with a little bit of work, and really not much more expensive- in some cases its even cheaper
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