Author
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Topic: Does a 351-M "have enough" for tow truck use?
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Ryan Wilke Gearhead Posts: 2494 From: Stanton, Michigan 49707 Registered: Oct 2000
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posted 10-31-2005 08:32 AM
I'm thinking about stepping into a solid '77 F250 4X4 to replace my current 390-equipped F100 tow truck. It'll be expected to pull an open trailer with a '69FB on it, and have tools/equipment loaded under the topper. The F250 is prettty solid, but I was hoping for a BB engine, not a 351-M engine. It also has a 4-speed behind the 351-M.I've never owned a 351-M/400 engine, so I'm asking for opinions...... will it be enough, or will I be unhappy? Thanks for any advice! Ryan
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Rory McNeil Gearhead Posts: 1687 From: Surrey, B.C. Canada Registered: Nov 2000
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posted 10-31-2005 01:16 PM
I guess a lot depends on the condtion of the engine, it IS almost 30 years old, you know.In stock form they were pretty weak, and had a tendancy to wear out the crank bearings prematurely, especially if not maintained well. A friend bought a brand new fully loaded F250 4x4 in 1979, with a 400&C6, it was quite a slug stock, but a Comp Cams 260H cam, Edelbrock Performer intake & 750 Carter AFB, along with headers and dual exhaust really woke it up. We towed his "Pro Street" 67 Fairlane (3600 lbs)on a open trailer, with a 8 foot camper over 1000 miles each way to Sacramento California for the 1983 Street Machine Nationals, and the truck towed just fine. Now, a smaller stock 351M, with almost 30 years under it`s belt would obviously be much weaker.------------------ 78 Fairmont 428 4 speed [email protected] 1.32 60 foot 80 Fairmont 302 5 speed 12.8@105mph 85 Mustang NHRA M/Stock 302 5speed. [email protected] 1.63 60 foot 59 Meteor (Canadian Ford) 2 dr sedan 332, auto 74 F350 ramp truck 390 4spd
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Dad Vishus Gearhead Posts: 1064 From: Moscow, Iowa, USA Registered: Dec 2001
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posted 10-31-2005 08:44 PM
My brother in law bought a new F250 in 79 with a 400 and a granny 4 speed. He wanted to tow a 30 foot camper and it was a bit weak for that.He put a cam and lifter set in it, not sure how big, a Holley 750 and Edelbrock intake on it. Exhaust was upgraded to duals. It had a 4.10 gear and after the mods, it was a stump pullin fool. I'd think a 351M would be a bit light for pulling anything very heavy. If the truck is solid, it would be a perfect candidate for a transplant. The engine bay is big enough for anything you want. When we started racing we pulled a flat bed with a 77 E150 with a 351W. It needed more gear to work very well. It had a Holley 600, Edelbrock Performer intake and Performer cam. Headers and duals made it run pretty well. A 3.50 gear was about right for economy and power. ------------------ 63 Falcon 377 Cleveland stroker Flying Toilet alchohol injection. 6.19 @ 110 MPH 1/8 mile 2002 Ranger FX4 daily driver 2000 F350 PSD Crew cab dually - Like commuting in a B52!! 98 US Cargo Phantom II 28'
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MLariviere Moderator Posts: 4120 From: Biddeford,Me.USA Registered: May 99
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posted 11-02-2005 10:06 PM
The 351M has the big block bellhousing pattern if you wanted to step up.
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Ryan Wilke Gearhead Posts: 2494 From: Stanton, Michigan 49707 Registered: Oct 2000
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posted 11-03-2005 09:05 AM
Thanks for the information and advice, Rory, DV and ML!Ryan
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