4 those of u that may have some old'school know how and appreciation
12-27-2006, 08:04 PM
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4 those of u that may have some old'school know how and appreciation first off...the reason i built this 283 was because...when you enter "283 performance combo"(or something to that effect) into yahoo and search you will find nothing positive said about this motor ...for stupid ignorant reasons.
That said...i come from a family of chevy and its peformance ... big block chevelles dominate this town...im a 3rd gen. mechanic ...@ 19 years old...so i swapped in this 283 in place of my 430hp 350sbc running 12.40's alllldayyyy in my 85 s-10 rcsb....and yesss i own an ls1....look what these morons had to say
http://www.carcraft.com/techarticle...ll_block_chevy/
"no real reason to build one today" hahaa
...anyway....heres what i did...
283 bored .040
k&n 14x4 with X-stream lid
Crane blueprint cam of the L-79 327/350hp .447 lift [hydraulic lift,not roller]
Vortecs off a 98 5.0/305ci.heads are slightly ported&milled[no roller rockers]
Valve sizes are 1.89/1.50, the biggest a 283 left the fac. was 1.72 int. valve
Edelbrock Vortec Performer-RPM air-gap
650 Speed Demon
Hedman long tubes, into a custom 2.5in. x-pipe fed into 2.5 40series Flows
4 speed T-10, 3:42's; 26in mickey thompson Et Streets
this motor yields about a 10:1-10.25:1 comp. ratio
at the track launching the truck @ 3000-3300rpm range i knocked off 13.5's shifting @ about 7300rpm....this bad boy ran like a champ...not bad for a 4.6 chevy...lol modular ford 4.6s cant even put these number up ...and thats with overhead cams...RIDICULOUS!!!! this motor winds up like the little beast it is.... using a roller cam setup, a little more compression and possibly some aluminum heads...theres no doubt in my mind you can have a 8000rpm screamer. Doing the numbers i think my motor is makin about 315-335 hp, and about 300 lb/ft. of torque...id say thats pretty damn accurate.
That said...i come from a family of chevy and its peformance ... big block chevelles dominate this town...im a 3rd gen. mechanic ...@ 19 years old...so i swapped in this 283 in place of my 430hp 350sbc running 12.40's alllldayyyy in my 85 s-10 rcsb....and yesss i own an ls1....look what these morons had to say
http://www.carcraft.com/techarticle...ll_block_chevy/
"no real reason to build one today" hahaa
...anyway....heres what i did...
283 bored .040
k&n 14x4 with X-stream lid
Crane blueprint cam of the L-79 327/350hp .447 lift [hydraulic lift,not roller]
Vortecs off a 98 5.0/305ci.heads are slightly ported&milled[no roller rockers]
Valve sizes are 1.89/1.50, the biggest a 283 left the fac. was 1.72 int. valve
Edelbrock Vortec Performer-RPM air-gap
650 Speed Demon
Hedman long tubes, into a custom 2.5in. x-pipe fed into 2.5 40series Flows
4 speed T-10, 3:42's; 26in mickey thompson Et Streets
this motor yields about a 10:1-10.25:1 comp. ratio
at the track launching the truck @ 3000-3300rpm range i knocked off 13.5's shifting @ about 7300rpm....this bad boy ran like a champ...not bad for a 4.6 chevy...lol modular ford 4.6s cant even put these number up ...and thats with overhead cams...RIDICULOUS!!!! this motor winds up like the little beast it is.... using a roller cam setup, a little more compression and possibly some aluminum heads...theres no doubt in my mind you can have a 8000rpm screamer. Doing the numbers i think my motor is makin about 315-335 hp, and about 300 lb/ft. of torque...id say thats pretty damn accurate.
Last edited by ZL1camaro; 12-27-2006 at 08:40 PM.
12-27-2006, 09:13 PM
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283s definately had there place in their day..looks like you have a good combo there..the only thing limiting you would be the valves.i don't think you can fit anything bigger than a 1.94 int.valve.
and i think your right on the power.kudos for doing something different!
how about destroking an LS1 to a 283?now that would be a high rpm screamer...
and i think your right on the power.kudos for doing something different!
how about destroking an LS1 to a 283?now that would be a high rpm screamer...
12-31-2006, 07:37 AM
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A bud of mine had a '69 RS/SS with a 283 with a Rock crusher and a 5:13 12 bolt in it and that little engine loved to tach. I don't remember the specs on the motor but when he'd jump in to the revs on that 5:13 gear... It'll make you grin.
12-31-2006, 02:27 PM
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I've built several 283's I love 'em. I have one in my garage right now, it's a '60 170 h.p. 2V for a full size with a power glide. I have a set of old school power packs that have been converted to screw in 7/16's rocker studs, and the heads have been very nicely ported. I can't wait for a reason to build that little bastard. I love the old school stuff that seems to get less and less attention, and more critisism, for eveyday that passes. Plus, nothing beats trailering a modern muscle car/truck with a 40-50 year old powerplant!