216 vs. 235? I think i've screwed myself. Is there a difference between a Rochester 1 bbl for a 216 vs a 235? I think I know the answer, but I want to hear it from someone else! Guys?
216 & 235 Carbys If we're only talking about Rottenchester Leaks Alot Series 'B' carbys , the major differance is in the flange at the base , it's smaller for a 216 but can easily be swapped to a 235 flange . Then the main jet is different plus GM never did stop fiddling with the machining of this good carby , they tweaked it thisa - way and that , not a lot of differance unless you're setting up a pair of them for dual carby useage . Amazingly , there's STILL plenty of good N.O.S. ones on E-Pay ! . Some of the older rebuilds available were made using good quality low milage cores . Or , C arter still rebuild these and re-bushes the throttle shafts on each rebuild , Chevy Duty sells them and I was very impressed with the out of the box quality of the one I installed on Len's truck some years ago . So , if you bought the wrong one , don't despair ~ you can cobble it up with parts off a $4.00 E-Pay parts carby or simply order up a spiffy rebuilt and after your truck is running *perfectly* , mail them back the wrong one you bought , not mentioning it tthemand they'll give you full credit as no one cares . Most importantly , REMEMBER : keep your choke & throttle cable _bracket_ ! the rebuilder will just toss it in the trash and then say " huh ? " when you go screaming back looking for it . I hope this helped .....
Thanks! And yes I feel that all too familiar feeling! I've always beeen a 216 junkie, so I rebuilt this awesome carby a couple of years ago. Rochester downdraft single barrel! But now I'm going with a 235 and low and behold, it doesn't fit on a 235 intake! FMTT! (Zig, that acronyn shouldn't be too hard to figure out!) Back to the drawing board! Just for grins, 216 carbys are 2 1/2 inches from centerline to centerline, and 235 are???
Fmtt Feather Mittens Tightly Tied? I've stripped the driver's side of my mighty 228. All this carb talk has me wondering~ Anyone know of a dual intake for a 228? Seems your Chevy blocks can get them, but GMC? Nate suggested that duals would be good for my freeway flying, so I was just wondering. Thanks for any ideas!
Zig, Here is one for you. When I bought my Chevy about 4 years ago, it came with a Nicson dual intake for a GMC. I sold it to Tom @ Stovebolt.com. Ask him about one, he is the best. http://www.stovebolt.com/
Sure they exist! Just think Fenton! I did a quick search and came up dry but... Check this out http://home.comcast.net/~bd97/ interesting, eh? I really do like old jimmys!
Zig, Sorry, I gave you the wrong link to Tom Langdon. Here is the correct one. http://www.stoveboltengineco.com/
Dual Carbys = ZOOOOOOM ! Oh , YEAH ! they sure as heck did make dual intake manifolds for Jimmys ! . fine one and install it , you're going to LOVE the power but watch the jack rabbit starts else you'l blow the rear end .
Thanks! Thanks for the links, guys! I LOVE the one you found, Ken!!! I just need more time to read it all. The stovebolt one needs more of my time, too. On a quick pass, the only split intakes were for those darn Chevy blocks...
Trust Me On This : You do NOT want a true split intake ~ the co-joined plenum gives you vastly improved throttle response and better mid - range power at no loss of power nor economy anywhere else . Same with the exhaust ~ a true split exhaust robs power except @ WFO conditions .
My bad! Sorry, Nate~ I misspoke. (I used the wrong terminology...) I didn't mean split~ I meant dual carb intake for a 228. You have to watch me... Sometimes I try to sound like I know what I'mma talking about! That said, YOU KNOW OF A DUAL INTAKE FOR A 228???? Who makes them? This is to good to be true! All I've found~ dual intake is for the Chevy block. Thanks for your alls help with this!
No , I don't (I'm not a Jimmy man) but these things were made as plopping an old Jimmy truck engine into your Chevy was very popular from the late 1930's to the early 1960's.... Find out the various brands of who made 'em then do the E-pay thing or be cheap like me and beat the bushes relentlessly....
Zig, if you're serious about hotrodding your 228 Check with Patrick at www.patricksantiquecars.com Call or email to see what they have to offer for your engine. Zoom zoom, baby!
Didn't mean to cut in... Ken, I hope you got your question answered! Thanks for the Patrick link, but all he had was a 4 barrel intake that Nate told me was not a good idea, or a setup for multiple ....ph....f.... ....ffff... I can't say the brand name type carbs! But trust me- they WON'T be breathing for my 6! I have some free time, and even more in the summer~ I'll see what I can come up with. First I prolly need some $$$ to start my search! Thanks again guys- I would love to have my truck breathing double. We'll see.
BIG Carbys On InLine Engines You must be very careful when installing a two barrel carby on an InLine engine as the outer cylinder will always run to lean and conversely , the middle two cylinders will always run too rich and there's nothing to be done about it , physics plain & simple . I occasionally see those big honking intake manifolds to put a 4 barrel carby on an inline engine ~ wow those engines are very short lived . Your very best bet is to put one carby for each intake port , that's three on all Chevy inline 6 bangers . Easier to set up two though . Once you have 'em set up and balanced , leave them alone , change the clear paper element fuel filter every time you see any crud or water in it and it should be fine for at least 40,000 miles minimum .
1 carby: o.k. 2 carby: zoom-zoom. 5 carby: ?????? No kidding. A good friend of mine has an aluminum 3x1 228 intake in his attic, that was (bored..drilled..cut..whatever), and converted to 5x1. I was going to snag it for my 216, until I noticed it was a Jimmy unit.
Yabutt : Does he drive it much , no . The best power and engine life will come from matching one carby to each intake port . You cannot change the laws of physics ! dumping mucho fuel into the center of a long , unequaly heated intake plenum means uneven fuel distibution to the cylinders ~ no way around it . I was looking at a brand 'F' InLine 6 cylinder marine engine that had been heavily modifiec for racing , it has 6 intake ports machined into it and had a seperate Mikuni carby for each intake port~ wow , how cool .
