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-   -   71 302 build (http://www.hotrodders.com/forum/71-302-build-235101.html)

strokermax 07-19-2013 02:05 PM

71 302 build
 
So my 71 has the too small for the car 302 not the Cleveland as i was told. Kinda disappointed but It only needs a new door which It came with so I guess It not bad

302 grabber Blue convertible auto has to be worth something


Anyways whats the best tricks to get more out of the 302 Id love to be about 300 horses and decent handling

ap72 07-20-2013 09:12 AM

Swap in a 5.0L HO engine with a small turbo, a single 60 or so. Easiest, cheapest 500hp you can do with a 302.

For the low low prices of 5.0l engines I wouldn't even take the valve cover off the one you have. Just pull it and swap. For your ecu I'd go mega squirt though you can try fussing with the stock one.

Irelands child 07-20-2013 10:02 AM

A non roller camshaft, pre 1986 302 can be updated and modified for many more horespower. Unfortuantely you will be throwing away everything but the block to get to that point plus spending a heluva lot of bucks. Either a 5.0L '87 up roller cammed engine with a set of some version GT40 head or a 351W, also roller cammed (1995-1996 Ford truck with F4TE block) and with a decent set of heads can be used in that engine compartment, both physically interchangeable though not all engine parts are. Add a decent 4 bbl carb, use one of Ford's letter camahfts and you will be right in the ballpark. Whatever way you go, you do need to do your homework with any engine and Ford's often being more 'interesting'. Just be really careful with anything that says 'Cleveland' or 'Modified'. as these engines tend to be even more 'interesting' then the 'W' series though with the right mods are fantastic performers but tend to get expensive. I would not add a turbo/supercharger to any SB Ford(302) unless it was a Ford Racing, Mexican or Australian block

ap72 07-20-2013 12:16 PM

Why no turbo? It's been done a lot and seems like the easiest, cheapest, and safest way to make power in this situation. I would also just keep the efi intake on an HO engine instead of spending all that money to downgrade to a carb.

JMO though.

Irelands child 07-20-2013 01:22 PM

Quote:

Originally Posted by ap72 (Post 1696218)
Why no turbo? It's been done a lot and seems like the easiest, cheapest, and safest way to make power in this situation. I would also just keep the efi intake on an HO engine instead of spending all that money to downgrade to a carb.

JMO though.

OEM Ford 302's tend to be pretty puny with their much heralded thin wall casting with many literally splitting in half. Yeah, those are very stressed and modified. Also with a used (abused?) salvage yard block, you have little knowledge of past life. Where they split is between the first main and the first camshaft bearing, and is not an unusual thing. Any of these salvage yard SB Fords need to have at least a minimum of a dye check with even more testing like mag particle if any questions.

As far as keeping an EFI, not a bad idea if the entire system is included with the engine purchase. Unfortunately, the only pieces you normally will get from a junk yard will be what's on the engine. The best way is to buy a complete running car. After market wiring/sensors/computers is not an inexpensive proposition, even stock replacement parts, and why I suggest a carb = and of course there are drawbacks such as possibly needing a front sump oil pan and oil pick up, different timing housing, fuel pump eccentric just to name a few things. I do run SB Fords (5.0's mostly and have gone through most of these pains)

strokermax 07-20-2013 04:19 PM

Its got a edlebrock intake and a holley in It.

It doesnt have a air cleaner on It right now but If I start It up with the hood all the way up oil hits the hood. What might It be

jokerZ71 07-20-2013 04:30 PM

Quote:

Originally Posted by Irelands child (Post 1696234)
OEM Ford 302's tend to be pretty puny with their much heralded thin wall casting with many literally splitting in half. Yeah, those are very stressed and modified. Also with a used (abused?) salvage yard block, you have little knowledge of past life. Where they split is between the first main and the first camshaft bearing, and is not an unusual thing. Any of these salvage yard SB Fords need to have at least a minimum of a dye check with even more testing like mag particle if any questions.

As far as keeping an EFI, not a bad idea if the entire system is included with the engine purchase. Unfortunately, the only pieces you normally will get from a junk yard will be what's on the engine. The best way is to buy a complete running car. After market wiring/sensors/computers is not an inexpensive proposition, even stock replacement parts, and why I suggest a carb = and of course there are drawbacks such as possibly needing a front sump oil pan and oil pick up, different timing housing, fuel pump eccentric just to name a few things. I do run SB Fords (5.0's mostly and have gone through most of these pains)

I've had the experience of seeing 302 blocks cracking from just sitting.In my experience,i've seen cracks mostly @ the rear of the block.Usually from the crank & outwards of it.

strokermax 07-25-2013 08:58 PM

It still got the factory motor in It. How much power on average does a holley and edlebrock performer Add numbers wise

JeffB 07-26-2013 01:26 AM

Compared to the factory two barrel intake the Performer and Holley probably gained you about 10-12 HP :( The only advantage of the standard Performer intake over a stock 4 barrel is a weight savings of about 22 lbs.Your '71 was one of the first years for smog motors with retarded camshaft timing and the crappy Thermo bump heads and dual diaphram retard distributors.The best thing you should do is is address these issues with a camshaft change and better heads and ignition.So lets start here:Six Budget Ford Heads That Work - Car Craft Magazine Since you stated on another post you mentioned you still wanted good mileage so actually the best priced Flo-Tek heads could work in your favor keeping in mind the weight of your car it takes torque to move weight so this is my suggestion for a camshaft:http://www.summitracing.com/parts/hr...view/make/ford I have it in my cruiser the bottom end and mid-range is very good it will pull up to 6,000 RPM no problem with the RPM intake I have your Performer intake will still have good low and midrange power.The weak link in SBF Fords is getting them to breathe, so the extra exhaust duration in this cam and better heads will help you with your goal for a distributor that is reliable and budget friendly and EZ to hook up go this route:http://www.summitracing.com/parts/sum-850022 all it needs is a 12 volt source and it's a done deal.Now let's address the advice given above,for up to 400 HP the later roller blocks are OK above that it gets scary your '71 block has more beef not as much as the prefered Mexican block but it will get the job done.Camshaft break in is critical with a flat tappet hydraulic as opposed to a roller cam but that is easily addressed.With the better heads and Cam you will need headers to enhance the package.

strokermax 07-26-2013 10:26 AM

Is there anything at the junkyard that might be of decent use?
I was thinking If I could get a 351 windsor cheap It would get decent mileage as i wouldnt have to press the skinny pedal so hard to get moving.

Irelands child 07-26-2013 11:25 AM

Quote:

Originally Posted by strokermax (Post 1698187)
Is there anything at the junkyard that might be of decent use?
I was thinking If I could get a 351 windsor cheap It would get decent mileage as i wouldnt have to press the skinny pedal so hard to get moving.

You can't have your cake as well as eat it. A 351W is NOT an economy engine in any shape or form. It takes more air and fuel mixture to fill those extra 49 cubic inches, all of which enter and exit though the same basic design intake, heads and exhaust as your 302 and turning a higher rotating mass, larger bearing engine. You have to decide if you want gas mileage or performance - and a 351W has seldom ever been chosen as a mileage miser.

JeffB 07-26-2013 12:18 PM

Or just get out the plastic and order this:Ford 302 320 HP High Perf Balanced Crate Engine | eBay

cobalt327 07-26-2013 02:32 PM

Quote:

Originally Posted by strokermax (Post 1698085)
It still got the factory motor in It. How much power on average does a holley and edlebrock performer Add numbers wise

Biggest bang for the buck performance-wise is prolly a lower rear gear ratio.

strokermax 07-26-2013 03:41 PM

I Wanna keep whatever ratio in It maybe go a tad higher.

But the car weighs basically 4k so If I have wind the 302 harder and higher then a 351 to push the same amount of mass wouldnt I save money.

strokermax 07-29-2013 11:51 AM

Ill have to search the junkyard for stuff


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