The 283 runs the following in my 47 Chevy with T350 and 3.5 rear. .040" over, flat tops, steel shim head gaskets approx 9.5 CR Summit 1102 Hyd Cam Dur@ 050 inch Lift :204 int./214 exh. . Valve Lift :0.421 int./0.444 exh/ lobe Sep 112 HO 305/601 heads Edelbrock performer intake Holley 465 2" rams horns & mandrel bent 2" SS exhaust Runs great, nice TQ down low and has enuff beans at higher speeds.
Hoop, Can you do the 268 with 601 heads? Picked them up this last weekend along with a qaudrajet carb and intake. Traded my pp heads for an hei Distributor, valve covers, alternator and a set of rams horns.
I've done some searching with no luck, can anyone tell me what type/size rockers and pushrods I'll need if staying with the stock 601's?
The Variables These are just some of the variables that will affect pushrod length. * Block deck height * Rocker ratio * Mechanical versus hydraulic cam * Small-base-circle cams * Different intake and exhaust base circles * Valve installed height * Lash caps * Variations between manufacturers' rocker designs * Rocker-stud runout Read more: http://www.carcraft.com/techarticles/116_0401_setting_pushrod_length/viewall.html#ixzz2g8Si4aS3
Can we rekindle this thread? I am in the process of trying to pump up my 283. However, I am aiming to race mine. That said, anyone have any experience with the 292 heads or the 461's on a 283? Of course, other mods would be needed, but, I am wondering.
Hey gang, I have what may prove to be a stupid question. I too am lurking on this trying to figure out a good setup for my Bucket's 283. I'm reading about 416 and 601 heads and started thinking, I have a pair of 415 heads that came off of a late '70s 267. Any chance they are comparable to the 416s but with a smaller valve size or some such? I have valve grind equipment and such at my disposal to upgrade sizes and such.
I ran a set of 461's, with 1.94 valves, on a 283 that was in my 56 GMC pickup. The engine had a Crower "Hot Street Beast" Cam, 278/284 advertised duration, .462, .470 lift. It was a basic, flat top piston stock rebuild, with an old Edelbrock C4b intake, and an AFB. Truck had a stock rear, and a Stock Truck 4 speed. It was a very Responsive Combo That got thrashed on relentlessly. The engine was .040 over. If I recall correctly, the 1962 283 Fuely vette ran the 1.94 heads also.
Studebaker, That is what I am talking about! Nice specs. Did you ever run it in the 1/8 or 1/4? Anyone know of some decent times for the 283? Pre 80's vintage. 12-13 second 1/4 or faster? My 283 is basically stock for now, with a vette manifold, holley 600 and ram horns. Runs great, but, I want to get her into the 11 to 12 second quarter mile time. Without adding exotics, anyone know of a proven combo for this CID? Car will weigh in at around 3100 pounds, with a 4.56 rear end, 10" slicks, ladder bars, ARB etc.... Please share your combos and tales of this engine. Thanks.
I never ran mine on a strip. If you want to get it into the 12's or quicker, you are going to have to push it beyond streetability, or at least to the very ragged edge Hot Rod magazine was full of cars running 11's and 12's with 283's 292's, and 301's in the 60's. The cars were Mostly, if not all "gassers", gas class race cars. Fiberglass front ends, weight reduction, 4.56, 5.33's, and a ton of Compression and RPMs. My best source on this info was to read the old magazines, and about 10-12 years ago, my Buddy and I built a 327 based on everything we had read. and stuffed it in a 65 c-10. It was a good 12 second truck,(no chassis work at all) Get the compression up as High as you dare. You say nothing exotic, I assume you mean no roller cam, although rollers were in use in the 60's. We ran a comp cams 294S in the 327, should be a screamer in the right 283. Make sure you have a forged crank(there were cast 283 cranks, in 1967) Stud the bottom end, and check all your clearances. Zero decking couldn't hurt. Read Smoky Yunicks book, and if you want to run the 461's do a good porting job.No 2.02's due to bore size. A 4 speed is a must. The motor we built still lives, albeit with a slightly milder Z-28 cam, in my Dads Studebaker. The first engine I put together at 17, was supposed to be a 327. The guy Who helped build it lied to me, and claimed it was (of course) a Corvette 327. I bought 350 heads and cam for a 327(Crane 296 Fireball) This went into a 66 Chevy Truck with a factory Powerglide. The effects of big chamber heads on an overcammed 283 were less than impressive. It sounded good, but the marching band could run the quarter quicker at half time. Do your Math, nothing is worse than your dream being a slug.
A good friend of mine built a super light 57 Chevy with a snotty 283 and he'd come off the line at 7000 rpm up to 8500 rpm and the best he could run was a mid 11 at about a 118 miles an hour. Pulled the front wheels with the 513s! Posted using Full box of Crayons on the Kitchen Walls App!
220 HP 283, in a 57 Chevrolet Sedan Delivery, with a cast iron Powerglide, GENUINE 60's era Junior Stocker, running in the high 13's with 4.88 gears and slicks. One of our HAMB members is currently running this car/setup at nostalgia and HAMB events. And that's a fact, Jack! Butch/56sedandelivery.
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