Just installed a 351 roller motor, Taurus Fan, and explorer serp set-up.

[Hawk]

The bronco owner Sabas blew up his 302 coming back from TDS. Blew the #4 Piston and bent a valve on the #7 cylinder.
We were able to find low mileage junkyard 351 Roller motor from a F250.

We then torn it down & rebuilt it.
Cleaned out most of the harness.

He had Windsor Jr Heads on the 302 so we got them freshened up to use on this motor. Had upper & lower intake ported & polished as well. The lower intake is from a Mercury Boat….HEAVY!! but ported nicely for low end torque.

BTW this motor has an inline oil cooler at the block. Sweet set-up that we kept, will have more on this setup. The inline oil cooler was available in F250 with tow package.

Put the explorer serpentine set-up on the front end, and the Taurus Fan with VW Jetta 2 speed switch. Both fit without any problems.

I did a nice custom harness for the EFI and the Taurus fan.

More to come....

Bronco is now @ the exhaust shop getting new 2 into 1 exhaust. Next the dyno., btw the old 302 was dyno’d @ 190hp at the rear wheels running 37 Military beadlocks. Stay tune….

 

[rustbucket]

Any reason you went with the Explorer serp setup instead of the one that was on it? Was it more compact? The reason I ask is that when I did mine, I just used the existing serp setup. It works fine, but is a bit tight. I only have a little over an inch between the fan and radiator with a flex fan and 1/2" spacer. The radiator is stock.

 

[Hawk]

The explorer serpentine set-up is more compact making it easy to use the Taurus Fan.

 

[Sabas]

I had the explorer set-up already. The radiator is stock.

 

[Prizefighter]

Nice upgrade, you make it seem so easy too ;D.

 

[Sabas]

Yep, it even bolted up to the 700r4 pretty easy. Ric's harness is plug & play.
Sabas

 

[rustbucket]

Any idea how much clearance you gain? Thinking of converting. I take it you need to use the Explorer water pump too?

 

[Ratch]

Any idea how much clearance you gain? Thinking of converting. I take it you need to use the Explorer water pump too?

Correct, you need the explorer timing cover and pump for the pulleys to line up.

 

[Crawdad]

Great swap!! I'm jealous! A parts break down and estimated cost (specifically on each item) would be super! It would give us an idea of how much to invest i such a journey. Great thread and thx for posting pics!

 

[pholcomb]

What year explorer did u use? I assume that the donor had a 5.0 correct?

 

[Viperwolf1]

What year explorer did u use? I assume that the donor had a 5.0 correct?

http://classicbroncos.com/forums/showthread.php?t=158868

 

[bronco-billy-66]

Looks good!

Whats up with the pwr steering pulley? Smaller than stock? can you tell a difference?

Are you running a body lift? The reason I ask, I'd like to switch to that intake setup, I have an exploder upper and would like to find a marine 351 lower(gt40) I have a 1 inch body lift, stock hood.. thanks

 

[Sabas]

Pulley is from Driven Auto, I had my Steering pump redone, It turns the 37" H1 tires easy.
running a 2"body lift, I run a hood scoop. Wild Horses sells them, in fact my bronco is shown on that catalog page.

 

[Sabas]

Crawdad most of the parts were picked up throughout the years. EFI set-up 3 years ago. Explorer set-up was put on a couple years ago, Taurus fan was installed last year, Most of parts were bought during 1/2 off days at boneyard.