An inline is a completely different deal. The trick with 180 headers on a V8 is that you split up the firing order in to 2 4cyls ( with the pulses evenly spaced, like 4 inlines are ) In a way you trick the V8 into acting like it would with a Flat Crank. A 6 inline already has that. Cyls 1-2-3 are evenly spaced, and 4-5-6 are too. Thats why they sound so good with a split manifold.
I hear ya! I remember a few years back a buddy of mine and I were at a car show sitting side by side, and he was complaining about how tough it was putting headers on his '71 Cuda. I looked into his engine compartment and said, whats so hard about those? You could see all the bolts and had plenty of clearance. I showed him my '66 fairlane(390FE), I don't exactly remember but theres like 14 header bolts per side of which you can see maybe 4 of. Those Shock towers are really tight to the motor. You have to be the king of Gumby fingers to work on those. I have 4 different bent wrenches to tackle that job... I have a header leak and don't look forward to fixing it. He never complained about his again!
this vette has a nice sound, i had a 900 honda dirtdrag/hillclimb bike i built 180 degree headers for, even thought it wasent very fast and i never did make it up the hill at the Port Angeles, it still sounded great. http://video.google.com/videosearch...n&emb=0&aq=f#q=180+degree+headers&hl=en&emb=0
A DR.GAS X pipe give a very similar sound and performance. Irvine was running one of the setup sat Daytona. They all talked abotu how it sounded different. The team kept it a secret the car flipped and the secret was out. I put one on my 65 stang with side out spintech mufflers. The sound was extremely evil. And before anyone bust on me...IT does not sound like a typical H pipe. Mine sounded almost like a 60's indy car.
Those aren't really 180° headers. Four tubes have to cross for them to be 180°. Not to say thay don't make a differece, i am sure they do, but they aren't 180°. Jardine made those for years and you see them pop up once in awhile. I would just as soon run an X-pipe myself.
I had a set on a SS/E 427/410 67 Fairlane back in the early 70s. You did not have to take the engine out to put them in, they were a bear the first time, then they got hot and they were a nightmare after that when nothing slid together or lined up to bolt together any more. I also had a set of Ballinger Bros headers on my 427 57 Ford Custom 300 back in the 60's, any relation to you ? At the time thay were the latest trick stuff and there wasnt much else to choose from. The factory cars ran them so we figured they couldnt be too bad.
You're right. I wonder what the advantage is for the pictured headers? It doesn't matter if it's a Ford FE 1-5-4-2-6-3-7-8 or a SBC 1-8-4-3-6-5-7-2 (actually the same firing order it's just that the cylinder's are numbered differently).The center 4 cylinder's tubes have to cross-over for a 180 degree header.
The headers on my 64 Fairlane look like the ones above, that is just to be able to get enough length out of the rear tubes without making a loop. Nothing to do with firing order. The ones in the Stahl picture blow me away. I thought i was just inventing that! They are not 180 degree either. 180's have two tubes cross each side onto just two collectors. That has all tubes mate with the ones 360 degrees apart and 4 seperate collectors. That's what I made for my 428 in my 1953 ramptruck ... only vehicle i've got with enough ground clearance.
Thanks for the explanation on the pictured headers with the 2 pipes crossing over, that makes sense! On your project---Wow, that must have been a time consuming job! Hope you had help holding pieces while you tacked them. My wife helped me once-----
I dont know what you would call them, but it looks like the 1-6, 8-5, 4-7, and 3-2 tubes are connected. And with a 18436572 SBC firing order, that puts them exactly opposite of each other. If you now connect the two pipes on each side that connects 1-4-6-7, and 8-3-5-2, like a regular 180 does. Its not unusual to connect 1-4 and 2-3 before merging into one on a 4 inline and that comes down to pretty much the same thing...
Yeah, thats a good expanation, you have to have 4 pipes crossing with two collectors for them to be 180° ones. A GT-40 is a good example: http://img.photobucket.com/albums/v689/mreid/GT40 Build/029.jpg http://www.mdamk2.com/photos/parts/headers/header_rear.jpg http://www.mdamk2.com/photos/engine/combo_2.JPG http://www.mdamk2.com/photos/parts/headers/header_left.jpg http://www.mdamk2.com/photos/engine/combo_3.JPG Is there a plumber in the house? Tom's are 360° though, and that doesn't hurt, it like a 360° twin bike motor woth a 2-1 pipe. Theres just 4 outlets.
As they are they would have 180° pulse timing, but in the traditioal sense they would need the connection for it be a 180° scavenging signal. they are cool though!
The 180's do look mighty complicated from an installation point of view. I guess for primarily street usage and in the interest of cost saving I'm better off installing a simple X pipe in to my 3" exhaust system under my '36 coupe. Wow.........some of those pictures of those 180 degree setups on this thread are true eye wash. If I got challenged into a stop light run by a guy with one of those setups the intimidation factor of his 180 degree headers would have me stuttering out excuses why I can't race him right now. ( uh gee, I left my licence at home, uh my oil is too dirty, maybe another time?)
I bought these for $25.00 at a yard sale over the weekend. They are NOS 351 C 4V 180 degree headers. One tube has been beat on, but they were never run, it will be easily fixed. Now, what to put them on?
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