I have a 1972 chevy 250 inliner that i would like to modify for high performance i have about 2 grand, the motor was pulled out of a chevy pickup and was running great when pulled. thanks TJ
Cliffords has all kinds of inline parts, intakes, headers, etc... Most everything you can imagine. You should be able to Google them and find the site.
the clifford site is down i think, i have checked them out before but i was hoping to find more sources of performance parts produced by other companies
I find a lot on eBay. Search chevy six, chevrolet 6, chevy 250, nova 250, camaro 250, chevy 292, you'll come up with clifford stuff, and there's also books in there on how to hop-up the 250. That's where I got my offenhauser intake manifold. Also there will be header flanges for sale there. A while back there was a bitchin' motor, complete with 3-2 manifold and carbs, lots of chrome etc, that sold for only $900. Search each one of those titles seperately, you'll get more leads.
Try Langdon Stovebolt, Patrick's Antique Cars & Trucks, and the Inliners International website. Otherwise, there's a pile of places to get parts for inlines. Check out Speedway, Chev's of the 40's, Cali. Hot Rod & Custom Supply, etc... The list is endless.
I did a blow through turbo on my 200" ford. only fancy parts I have on it is a cliffy holley 2v adaptor (the 200" ford has the intake cast with the head so carb swaps are a pain) using a stock fuel pump, ignition, cam, pistons and all. only fancy part is the fabbed up manifold for mounting the turbo on. but you could also run a J-pipe
unless you have hood clearance isues scrap the 250 get a 292 [about 4" taller] a 194 chevy 6 head will up comp ratio 1.25 points [i have one for sale for 40 + shipping] use checy sbc 194 - 160 valves remove center port divider and install bolt in floor lump plates available from precision engineering in either north or south carolina these plate costing about 100 will do the same thing as a $1,400 sissel head i used to race a 292 powered 60's altered in 99 turned best of 9.78 @134 in quarter best intake weber side drafts expensive hard to find next best clifford 2x4 use hot cam 290 dur 550 lift 1 3/4 tube headers you'll have a V8 asskicking machine john
Maybe one of your first considerations should be - what are you putting this into, and what do you want to do with it? You can take the same engine and make a nice torquey cruiser w/ good gas milage, or you can make a screamin' high rpm drag engine, but most guys won't be able to get both things from a single engine. Before you sink your dough into this project, think about the vehicle weight, rear end gearing, target highway rpm, and type trans that you're using, plus the main vehicle use. Once you know these things, you can get some advice on what you need for your engine. If you can find a 292", and it suits what you're doing better than the 250", go with it from the start. The 292" can deliver more torque & HP, where the 250" will get you a little better MPG. Call Tom Langdon @ Stovebolt Engineering, 586-739-9601, for advice and parts once you have your project in focus. He can supply you with cam, carb and intake info based on your needs, and can get pistons and bearings based on your rebuild needs. He has engine mounts to put your mill into whatever you're using. He also stocks a bunch of finned aluminum parts to dress up the engine. Tom is a retired GM driveline engineer and an old drag racer; he can give you some excellent advice on an engine build up. Most Inliners that I've heard on this subject say to forget about the 194" head on a 250" or 292". Yeah, it has a smaller combustion chamber, so can up your C.R., but the valves & ports are smaller, too; equals less flow, less power. If it's C.R. you want, you can get that with the right size pistons and a little head or block shaving. The comments about using the "port lumps" to improve airflow will apply to any of these six cyl. heads. IIRC, Precision Engineering is in Waxhaw, N.C., just a bit east of Charlotte. If you're going racing, they also sell custom made intakes. www.obrientruckers.com also has a buch of stuff to dress up an inline. And he's a HAMB'er. You might also want to look into an nice dual exhaust set-up. A whole lot of the "buzzin' half-dozen sound" comes from separating the exhaust pulses. Several places sell tube headers for these engines, and Tom Langdon has some really nice cast iron dual exhaust manifolds. You might want to get a copy of Leo Santucci's book on inline six power. He mainly focuses on the 292", but much of the info can be used on smaller engines. You can find a link to this over on the Inliners website; www.inliners.org Later, Kinky6
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