On my ‘55, I found that mid size trucks, IHC, Navistar, etc., with 466 etc., engines, have elbows that fit 4”, 5”, 6”, 7” turbos, piping and air filter housings. Real handy without having to reinvent the wheel. Find an appropriate size wrecking yard. Picture shows 6bt in my ‘55.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires. '47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle. '54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed. '55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
Just a note that I have moved your post to the The HiPo Shop as the topic better fits into that forum.
Best Regards, Dan
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
You can buy those from a good plumbing supply house like Fergeson in the sizes you mention including adapter elbows with different diameter ends. They're usually made by Fernco and colloquially referred to as such.
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
Intake plumbing under pressure requires it. i.e., after turbos, etc.
AND sometimes some additional help. A trick I've used on my Diesel is some liquid laundry detergent on the connections. A light smear dries up and glues them together.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.