Rational connection? Well I think its plain at day Stevie. Cool name BTW, I have the same one except there's no "I" in mine. I think they put tequila in the water, at least the crappy bar around the corner puts water in the tequila. It may be a little deep for most but notice the thread title "GMC blowers"? Now notice some of these are 671 but not GMC? So a guy posts some awesome pics of blower set ups with nothing but " breathe deep"? Then I just finished it with the rest up to the last line " but we decide which is right and which is an illusion." And you quoted me but added to my quote, so besides not being cool Btw, what the fuck does your comment have anything at all to do with this thread?
How about we get back to talking about blowers,I need all the advise I can get,single carb 471,dual carb 471,or 671,dyers,Hampton,etc.One thing I don't like is the name evgraved on them and whats the best and lowest intake.
Kinda depends what you want the blower to do. Generally if you want to go fast, use a big blower and put a big engine under it. If you just want it to look good, then it depends on what the car is. Either way, give us a lot more info and we might be able to help you decide what to do.
sorry, messed up making the video......just lay on your left side and click the pic here she is as a normal view...just no noise and it's a real GMC
^^This is how an old car is suppose to look like with a blower. Period perfect parts, unpolished for a more drag/hot rod look. ^^^
a pic of mine: GMC 6-71 unpolished, Weiand intake, DELTA 2" drive, GT end plates on both ends, Holley 1850's dated '64. That's period correct !! LOL. Oh yeah, a Factory short ALUMINUM water pump dtd 1966. 'cept the valve covers are wrong, i've got Corvette covers with breathers for it.
Looks like you have plenty of inspiration. If you feel up to the challenge, read through this thread http://www.jalopyjournal.com/forum/showthread.php?t=367403&highlight=blower+diesel+to+gas I picked up a 6-71 at the swap meet this weekend for $100, and from the info in that thread I feel like I can convert it and go have some fun without breaking the bank. Good luck man.
Nice pics,it would be in a 30 coupe on 32 rails,want it unpolished and want to keep as low a possable,i dont want it to tall and want to keep it very racey looking,it would go on a 327 thats built to drive hard all the time,not interested in drag racing just a serious street car with bias plys
wrong frame It doesn't really matter what intake you use, as long as it's not one with the plate welded to a carb intake. The height difference probably won't be noticeable. If you want it easy to set up, get a newer intake with the thermostat in the manifold...if you want it old fashioned, get the intake with no thermostat and run a separate thermostat housing. Polished or unpolished, 4 or 6, it'll look good. If you want to go fast, like I said before get a big blower and a big engine under it.
Blowers can be fun, and cool, However In the wrong hands they can be dangerous as well....What I mean by that is everyone wanting to go the blower route needs to do their homework. You would be supprised how many people think you just get a old GMC blower from a inline 6 detriot and bolt it on their motor that has 12 to 1 pistions in it, rig up a pully setup and away they go. There is a reason other than profit that Blower setups start at 3K and go up from there. That One to Two hundred dollar blower core you bought at the swapmeet or from a old truck salvage yard, needs alot of machine work and converting to put on a gas engine and be safe. My advice is to Do what you do best, And let the blower pros do what they do best and do your conversion for you. Bill Dyer of Dyer superchargers Is one hell of a good place to get your GMC core converted for Hot rod use. Anyhow Not that anyone cares but that is my 2 cents...LOL
Would a 371/471 and small 283/327 work together well? In a lighter car of course. A baby rail or Angila (hey Junior Stock!) street/strip on the car.
I know its polished but going for a more 60's look then total SPEED!! Not period perfect but I like it...
What's that run like with the ram horn exhaust? Does it not cause any flow problems since it looks like your running the blower underdriven? I like the look.
Thanks man..... I really couldn't tell if there is flow problems. The first sideway pic is a video of the dyno time...yah it's a good 'street motor' dynoed with headers, but i really wanted manifolds. They are vette 2.5" dumps, and i got some time reworking the inside to clean out all the weird crap to make them flow better. With all the crap cleaned out, the ports are much bigger and gotta be about the same as any block hugger, so i'd assume i'm not losing much. Been on the road for a month or so. 1/4 throttle in 2nd or 3rd gear and it will blow the tires off....don't even ask about 1st as i gotta feather the pedal....500+ torque at 2400 rpm.... We got our own blower expert on the hamb here...don't waste time or $ with the big companys...Gary will hook ya up. Yah, it's underdriven as we were pulling to much boost running it at 1:1 that a GM block will not take. About 10% under and still pulling big boost numbers Buddy donated the blower to the build, got used parts (pulleys, idler.....) and hamber to rebuild, low buck build with good power. Got lots of guys asking at shows if it's a GMC one...Love the old look with making good power guess that's why i'm starting another blower build already....BLOWERS RULE
I really dig it man. I didn't think about porting and polishing the exhaust manifolds. Makes sense. You won't mind if I steal that idea when I build the blown 283 for my 55 Chevy, do you?
I like the cast finish as well. Here is my pruned 4-71. The polished 4-71 was setup by the Leffler brothers (Cleveland) in the 1960's. I assume that was before heavy duty end plates were available as this unit uses early originals with steel rings pressed over the bearing bosses to keep them together. The rotors were pinned 3 places in each rotor. It has never been run since built in the 60's. The last is for parts but the case will get pruned this winter.
Not aware they made a "4V71", but I'm very sure the inline 4-71 has 10 inch rotors, while the 6V71's have 12 inch rotors and inline 6-71's use 15 inch rotors....that's 3 inches shorter using my old school math. Do a little more research and check it out.
The Jalopy Journal
