new member here and I have learned alot about my 1966 ford f100 with this site. Please help me with my current situation. I have a 1966 ford custom cab, shortbed, 2wd. I have built a 429 to go in and can't find any long tube headers for this setup. Does anyone have information on brand or company that sells headers for my truck. I also want to run a 10inch rim on the back, can this be done without having my tire rub. And if I can run a 10inch rim what size tire do I need with it. Thanks for all the help.

 

Welcom mdrjcr-

Believe saw 2 or 3 on ebay: 2462376203/2463484019, did not get item # for third. May be more. Not sure what brands, or application. Suggest run ebay search under 'truck headers'.

Some of the header manufacturers post the spec's and applications in their web site. If the vehicle has had an engine change (not an original application) may not be able to find your application.

Suggest run an FTE search, believe i have seen the topic in one form or another in the past.

Sorry, can't help w/ tire question. Sure other FTE members will be responding who are more knowledgaable about the subject.

Good luck ,
dave

 

MD, Ford never put a 429 in a pickup. The 460 is the same block and headers for a 79 with 460 should work. If you are not racing the truck I recommend saving your money and just run duals.

John

 

429's & 460's Will run better with stock Log's the need the back pressure or if using header's run small exh. system.Unless you build & tune it for running header's.


Don

 

Welcome, mdrjcr! (BTW, what does that mean, if you can tell us) You're going to LOVE it here.

I ran a 429 in my 66 a few years ago, and it had Hooker Supercomp headers on it and it worked great - tight fit, but it worked fine. I am finding a PN for another thread, and when I find it, I will post it here as well. John is right about the app - I bot mine for a late model 2WD F-100 with a 460, just can't remember the year model.

There has been much recent discussion about the logs vs headers question for 385 series motors. I had high compression (11.5:1), high lift long duration cam (.688/305), ported CJ heads, big carb, etc. etc., so my Lima needed to breathe and logs would have undoubtedly given me more torque, but killed me on top. It was stone-cold flat out of the hole (unless I wanted to launch at 3 grand using the stall - not good redlight to redlight) and only became truly bodacious at 3,500 rpms. But that's why I built it, so relatively lazy out of the hole but ferocious on the top was OK. Manifolds were never an option.

Intuitively, logs are going to give you low-end torque for a street truck and jack you in the traps on the strip. If you're mild on the cam, and say a 750 on top, it's going to be give or take on headers vs. manifolds, I think. Don's right - it's all on how you built it. If he needs to breathe, let him breathe.

As for the tires, I can help you here (sort of). I have 15x10s on my six six right now with 275-60s on it....with room to spare. I truly feel I could put 295-50s on those rims with no rub. It's all about offset, man. There is a finite amount of space between the outer lip of the wheel opening (more on that later) and the inside wall of the wheel well, and you have to be wary of the leaf springs, I think. I need to get my butt out there and measure. But if you have the right offset rim, you can put some meats up in there, bro. All I know until I measure tonight is that I have 15x10s, 275-60s, and room to spare on both sides of the tire. I'm going to measure to tell you how much.

About the outer wheel opening: if done CAREFULLY, you can take some snips and make incisions every 6-8" along the lip of the wheel opening and bend that lip up and gain even some more clearance. I did it on mine even though I had about 1-1.5" clearance already with the 275s. If you do that, be careful if you use any kind of tool. An idiot buddy of mine did it with pliers (!) and you can imagine the outcome - what a goob!

 

OK, I found something before I got home and checked for the PN. Look at this. VERY nice. I wonder if it would work? Looks right.

http://cgi.ebay.com/ebaymotors/ws/eB...category=33631

 

thanks for the information, I have been searching for awhile. this site is great, sure have learned alot. michael 1966ford

 

md, for love or money I couldn't find the shipping receipt for those headers. Man, I'm sorry! I HATE losing stuff! But I'll level with you, if I would have known this kit was available when I bought those Hookers, there's no way I would have bought them. Far and away I think the conversion kit I linked to on eBay is a better deal. Prettier tubes, ready-made motor mounts.....
That in no way, however, masks my hienous shame for failing you in my search for that dang PN - fetch the cat o' nine tails and let the flogging begin!!!!!!!!!!!!

But I have some love for you on the tire measurements:

It's 13.25" from the inside of the wheelwell to the inside lip of the wheel opening on the bed, and the leaf springs are no factor: you would hit the inside of the wheel well looong before the leafs would come into play. But I am completely out of my gord if I thought I had 1-1.5" of clearance before I bent the lip on the bed's wheel opening. It's a quarter to a half at the most, so a 295-50 would have to go inward on a fitment for my truck given my rim offset, which I don't know because I forgot how to measure it while the wheel is on the truck - I know it's simple, though.

But I think 295s WILL fit. To wit, a 275-60 has a section width of 10.8" and a 295-50 has 11.6" - a diff of a shade over 3/4" - 3/8ths on either side. Without the help of a plum bob or wide calipers to measure the 265s, I'm best guess estimating that I have 1/2" outer clearance to the bed (pre bending of the lip) and 1.5" to the inner wall of the wheel well. Bend the lip and you're picking up another quarter on the outer.

One would need a reputable tire shop to advise you on workable offset on a 15x10 because you're stretching it at 10". I have seen 15x7s with such a radical offset/backspacing profile that even a 255-70 would rub! I have seen a tool that a shop would put your desired tire on, bolt it to the vehicle, and move it in and out on the tool to get the proper offset/backspacing profile. I have no doubt that a 295 will fit a slick with the right rim offset/backspace. If my 15x10s were offset 3/4" more to the inside, 295-50-15s would go on my truck no sweat.

Hope this helps!

 

yeah stick with the ehaust logs on those big blocks they need a little backpressure for maximum pefroamnce. if you put headers on you will notice a decrease in power and mileage on yours. the small blocks are a differnt story.

 

I think if you use headers on 429,460's you can use 2 single exh. that should help.


Don

 

that is 2 " Exh put in a Y - pipe .

Don