Starting to think about a 302 to 347...naw....427:) rebuild.

[airbur]

Here's the basic question....can I take the '70 block I have, get a machine shop to clean it up and bore it to fit one of the popular 347 stroker kits, then add a top-end kit and finish it off with a later model 5.0L EFI setup?

[Shawns Fords]

I don't see why not. If you are looking for someone that can build it for you, send me a pm and I can get you his information. He is somewhat of an expert at helping people build an engine for their specific requirements. We were actually talking about this the other day. He has been thinking about some engine seminars to help people determine what they need to make the perfect engine combo.

[akaFrankCastle]

Eric, as long as you are going to drop the coin on stroker kit, why not throw in the extra couple hundred for a roller block? Still get to drive your Bronco while it is getting built.

[ZOSO]

I would avoid a 347. Limit the 302 to 331ci. When you get into the 347 range you start pushin small pistons and the wrist pins is in the oil control rings. Unless they have changed it up in the last few years.

[Cortez]

Get a 351W and Go to a 408 stroker kit....oooooohhh yeaahhhh!!

[airbur]

Eric, as long as you are going to drop the coin on stroker kit, why not throw in the extra couple hundred for a roller block? Still get to drive your Bronco while it is getting built.

I thought I read that you can retrofit the early blocks to use rollers? I may be wrong.

I would really like to use the original block.

[akaFrankCastle]

Quick internet search says "yup, sure can".

[airbur]

Yep..... http://www.jegs.com/i/JEGS-Performance- ... 0/10002/-1

[Shawns Fords]

I talked to my buddy today, he is running a 349 CI right now in his Fairlane. He says he can get up to 352 or so with 060 overbore.

If you want to talk to him about building a nice strong stroker 302 for your EB send me a pm and ill get you his number.

[airbur]

Well, I thought about the 302 to 347...then found this for $200. Can you guess what's under the blanket? :)

[Viperwolf1]

From the contours of the blanket I'm going to say '96 351W roller block.

[airbur]

Viper must use "the force".

Thanks for your help Phil. Block and everything look good.

[Entourage]

Exciting - you don't waste any time. Is it an EFI system? What was it out of?

[airbur]

Yes, it came with full EFI but it's the truck version and from what I understand, not well suited to the Bronco.

It's out of a 1996 F350....rumor is it had around 48K miles on it before it was crashed.

[Entourage]

Sounds like a great findwith such low miles - congrats. I would guess it could be tuned to a Bronco. I think Booger and ZOSO are the John Lingenfelter and Reeves Callaway (GM tuners) of the Mustang world.

[airbur]

Sounds like a great findwith such low miles - congrats. I would guess it could be tuned to a Bronco. I think Booger and ZOSO are the John Lingenfelter and Reeves Callaway (GM tuners) of the Mustang world.

From what I understand, it's more the size of the intake etc. It's much too tall for a Bronco hood even with a scoop.

[hockeydad4-22]

Sounds like a great findwith such low miles - congrats. I would guess it could be tuned to a Bronco. I think Booger and ZOSO are the John Lingenfelter and Reeves Callaway (GM tuners) of the Mustang world.

From what I understand, it's more the size of the intake etc. It's much too tall for a Bronco hood even with a scoop.

If it will go fast enough, someone will make a scoop to fit it. A big chrome snorkel will look good with that newly shined paint.

[akaFrankCastle]

That intake is definitely going to be the problem. If'n you are wanting to stick to the EFI (which I don't know why you wouldn't, except for the reasons I am about to lay out), you are going to want to start hunting for a 95 Cobra R or 1st Gen Lightning lower intake manifold and an Explorer/Mustang GT 40 upper intake. As far as I know, those two models of vehicle were the only ones that used the offset lower intake manifold and offset upper intakes. Of course, a complete intake setup from either the Cobra or Lightning will work as well.

Lightning/Cobra R lower


GT40 Upper


I know J.D. is running an EFI 5.8L in his truck. I forget which intakes he has though.

[airbur]

So which years cobra/lightning will work to swap everything over?

And I take it cobra/lightning refers to the intakes and not the vehicles they came in right? Sorry, learning here.

[airbur]

Something like this...

http://item.mobileweb.ebay.com/viewitem ... 6345416361

And this....

http://item.mobileweb.ebay.com/viewitem ... 4988398702

Or....

http://item.mobileweb.ebay.com/viewitem ... 4176175460

??

[crawlercreations]

Something like this...

http://item.mobileweb.ebay.com/viewitem ... 6345416361

And this....

http://item.mobileweb.ebay.com/viewitem ... 4988398702

Or....

http://item.mobileweb.ebay.com/viewitem ... 4176175460

??

Nope.

Maybe.

Yes.

The lower intake has to be from a lightning or the Cobra R as they had the 351w. The standard cobras and mustangs had 302s. The 351w is wider and requires a different lower intake manifold. The uppers are interchangeable though as long as it is the gt40 style.

[akaFrankCastle]

So which years cobra/lightning will work to swap everything over?

And I take it cobra/lightning refers to the intakes and not the vehicles they came in right? Sorry, learning here.

You'll need to find parts from the 1993-1995 Ford Lightning pickups or the 1995 Mustang Cobra R. It actually does refer to the vehicle. Those are the only models that featured the EFI 351 with the desirable lower intake. I would pretty much abandon hope, but not altogether, of finding Cobra R parts. Ford only made about 250 of them. It was pretty much a stripped down car built for speed. The Lightnings are far more plentiful, by comparison.

No worries on the learning. I am no expert by a long a shot. Just well read.

I am pretty sure BC Broncos made an adapter kit to use the GT40 lower intake (Mustangs and Explorer 5.0) with the 5.8L. But I have also heard there were maybe some issues with flow with those adapters. I have no practical experience to back that up.

Don't worry. You can find the lower intakes. Check eBay and craigslist regularly. Might also check out some Ford Lightning forums for their classifieds section. I actually saw a Cobra R lower for sale on CL COS a few weeks back but didn't pick it up. Seller listed the price as "make an offer" after spending a paragraph explaining why it was so rare, so I knew it wasn't in my price range.

[airbur]

So I take it this upper would work but the lower wouldn't?


http://cosprings.craigslist.org/pts/2471507945.html

Also, can't you get an upper name plate made to indicate "5.8L" etc? Found one..not original but cool.....

http://www.performancepartsinc.com/images/5_8intake.jpg

[Viperwolf1]

There were some marine 5.8's with a cast iron version of the lightning lower too.

[airbur]

Good to know.....I'm looking around. Not many on Craigslist or eBay now.

Any suggetions on a good machine shop to get the basic boring and cleanup done on the block?

Thanks.

[airbur]

So can the Gt40 upper be from any year?

[MarcInMaine]

I would also check ford racing for this. I would like to do a similar setup with mine someday.

[Viperwolf1]

So can the Gt40 upper be from any year?

Yes. There are some differences in EGR routing but if you don't plan to use it it doesn't matter much.

[airbur]

Ok. So I see a lot of GT40 5.0L uppers available. Is there any problem with flow restriction etc for the 351w or larger?

[Viperwolf1]

Ok. So I see a lot of GT40 5.0L uppers available. Is there any problem with flow restriction etc for the 351w or larger?

No. 351W is what the GT40 manifold was designed for.