Thread: 4.3 v-6 buildup

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yep there parts like you said 350 parts will work theres cams erson makes them .the marine hyd roller is a good cam for some build iron and came with a 4 barrel intake . there was i think bush class or some road race class that gm made alum blocks intakes .at one time a friend of mine had every part that gm made for them i did some but very mild builds.chevy power book shows some stuff in it

Originally Posted by pat mccarthy

yep there parts like you said 350 parts will work theres cams erson makes them .the marine hyd roller is a good cam for some build iron and came with a 4 barrel intake . there was i think bush class or some road race class that gm made alum blocks intakes .at one time a friend of mine had every part that gm made for them i did some but very mild builds.chevy power book shows some stuff in it

Yeah Pat I bought one of those Bowie 4.3 cast iron blocks against my partner's advise from a bush team when they stopped using them.It was a ruff casting with nothing done to it.No holes,nothing.Talk about expensive........I had to turn in my first born<well he ant worth much so it was a good deal-LOL>to finance the machine work needed and then the parts....... common pin crank,I had to be out of my mind.In the end,holding it back it ran in a chvette ran like a clock 10.90 every time.

Man, I read the info on the link---now Im more confused than ever-----it seemed such a simple idea in the beginning!!

But, to go on a saturday nite cruise in a lil chevy II, park, open the hood for all to see a cute lil 6 popper all dressed up like its big brother. With a mild build and a little cam, she ought to run adequately with a little bump!

Originally Posted by keotie

Man, I read the info on the link---now Im more confused than ever-----it seemed such a simple idea in the beginning!!

But, to go on a saturday nite cruise in a lil chevy II, park, open the hood for all to see a cute lil 6 popper all dressed up like its big brother. With a mild build and a little cam, she ought to run adequately with a little bump!

you do not have to make it hard just look for a gm roller cam engine .use some marine parts or buy a intake marine cam or a roller cam .abit of head work and some CR and you will have a runner .i all ways used 350 pistons in the 4.3 was cheaper then buying 6.there is a evenfire and odd fire engines new one pc seal is the block you want there not hard to find i would look a 1990 the newerVtec engine may have better heads you will have to find a intake or drill the heads a check port runner match up

Scott Sehr's shop sent me this link on a 229ci v6 they did - 503HP, 474ftlbs sounds pretty mean, engine's headed to Hawaii!! Scott's a great guy in Sioux Falls, SD.
http://www.youtube.com/watch?v=ddA1MgLex2Q

Originally Posted by pat mccarthy

yep there parts like you said 350 parts will work theres cams erson makes them .the marine hyd roller is a good cam for some build iron and came with a 4 barrel intake . there was i think bush class or some road race class that gm made alum blocks intakes .at one time a friend of mine had every part that gm made for them i did some but very mild builds.chevy power book shows some stuff in it

Pat the cam you are talking about is it the 225hp cam or is there another production cam?

Originally Posted by sfort

Pat the cam you are talking about is it the 225hp cam or is there another production cam?

there are many cams made by many hyd solid . flat and solid roller and hyd roller . custom if they have cores .gm made many rollers cams and were made here in bay city

Originally Posted by pat mccarthy

there are many cams made by many hyd solid . flat and solid roller and hyd roller . custom if they have cores .gm made many rollers cams and were made here in bay city

The "W" cams rated at 200hp are the best production cams.

"Factory 4.3L Cam Specs
* '96-'00, VIN W, w/ balance shaft
- Lift (I/E) - .415/.429
- Dur @ .050 (I/E) - .191/.195

* '93-'96, VIN Z, w/ balance shaft
- Lift (I/E) - .376/.402
- Dur @ .050 (I/E) - .183/.193

* '92-'95, Vin W, w/ balance shaft
- Lift (I/E) - .432/.440
- Dur @ .050 (I/E) - .208/.208

* '91-'93, ZR9/Z79, Syclone/Typhoon
- Lift (I/E) - .351/.386
- Dur @ .050 (I/E) - .179/.195 (Ductile)

* '90-'91, VIN Z, Astro/Safari
- Lift (I/E) - .403/.450
- Dur @ .050 (I/E) - .202/.213 (Steel)

* '87-'94, Vin Z, w/o balance shaft
- Lift (I/E) - .351/.386
- Dur @ .050 (I/E) - .179/.195 (Ductile)"

Gm did make L79 version 4.3L cam non-balance shaft both flat tappet and roller but is not in production anymore.

http://www.gmpartsdirect.com/perform...CATID=304.html

Comp cams and Crane cams are good streetable cams, Comp cams can make custom grinds for racing.