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V8 Conversions

V8 Conversion Information

If you have a tired 289 or 302 or need more horsepower and torque, the 351 Windsor is the way to go. You may get better mileage with a Windsor than a stock 289 / 302 due to more torque and lower RPM. A 351 Cleveland doesn’t have enough low range torque for four wheeling. Clevelands require very expensive custom radiator, headers and exhaust. Hard to find 100+ octane gas is also necessary. So, unless you intend to drag race at 5,000 to 8,500 rpm, a Windsor will out perform, out pull, out climb, and get better mileage than a Cleveland.

A 69-70 2V or 4V Windsor is best, a 4V having 10.5:1 compression or a 2V, 9.5:1. Before you swap, see if the 351 has a 3 bolt harmonic bal-ancer. If it has a 4 bolt, you’ll need a 3 bolt harmonic balancer for a 69 Windsor. If you can’t find a 3 bolt, you can use a 302, 3 bolt balancer by re-marking the timing marks. Reuse your 302 water pump, pulleys, belts, etc. using the power steering adapter bracket #3160 & alternator bracket #3161.
The 351W rear main is larger, so the stock 302 pan won’t work. An Oil Pan Kit, #3103, is needed to clear the front differential. Most Windsors have the sump in front which is bad for four wheeling. Your engine could run out of oil as you’re climbing a hill! Our pan has a rear sump. Even with this pan, to avoid damage, your Bronco must be lifted 2- 3 1/2”.

To complete the conversion, our Headers are designed to take into consideration the extra 1 1/2” height of the heads. They don’t rub the firewall and if you need to remove the starter, you can leave our headers in place. CAUTION: Don’t try to use your 6 cyl transmission with the V8. There are several problems and it’s not strong enough to handle the power.

SWAPPING A 6 CYL FOR A 302 / 5.0L OR 351W: YOU'LL NEED:

#3100, or #3102 Headers
#3103 Oil Pan (351W) or #3642 Oil Pan (302)
#3110 & 31112 4-Core Radiator with Bracket Kit
#3108 Fan Shroud
#3107 Lower Radiator “L” Brackets
#3114 Rubber Engine Mounts
#3115 Motor Mount Brackets
#3160, #3161 (351W only)
Ford V8 Oil Pan V8 Oil Pans
These pans are necessary to clear the differential when converting to a 289 / 302 or 351W. Both are rear sump pans, and require mods to work with taller-than-stock oil pumps. Contains new pan, pickup tube & screen, dipstick & tube, and main bearing bolt. Shown in blue, but comes black. Requires mods for taller-than-stock-oil pumps as the block must be tapped for dipstick.
#3103 351W Oil Pan, $219.00
#3642 289/302/5.0L Oil Pan, $225.00

Ford V8 Premium Oil Pan Gaskets Premium Oil Pan Gaskets
These great reusable silicone gaskets require no adhesive which= no mess! They have a steel framework to hold theirshape and come with great little keepers that hold it to the block while you get the pan into place. PermaDryPlus by Fel Pro.
#3097 302 / 5.0L, $46.95
#3098 351W / 5.8L, $39.95

Ford Power Steering and Alternator Adapters Power Steering, Alternator Adapters
These brackets attach the 302 alternator and power steering pump to the 351W heads. They retain stock 302 mounts and use the same belts and pulleys.
#3160 Power Steering Adapter, $16.50
#3161 Alternator Adapter, $16.50

Ford V8 Bronco Motor Mounts Motor Mounts
6 cyl. mounts must be torched off and these (#3115) V8 brackets installed in a new location. New rubber mounts (#3114) with safety pins are needed to prevent radiator damage from engine movement.
#3114 Rubber Engine Mounts, $45.00
#3115 Motor Mount Brackets, $79.00


Ford Bronco II and Ranger Catalog

James Duff
6609 Bronco Dr., Knoxville, TN 37921

Phone: 1-865-938-6696
7am-3pm M-F West Coast
10am-6pm M-F East Coast

Fax: 1-865-938-6746
24 Hours

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