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How fast have you been with a 4.3 GM v6?
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DRR Pro
Picture of Footloose
posted
If the tracks are gonna be slick because of the glue shortage,I am thinking I have a 4.3 v6 and a 283. Could you run 8.0 with the v6? 1/8th mile?
 
Posts: 1879 | Location: in a van down buy the river | Registered: September 07, 2002Reply With QuoteReport This Post
DRR Top Comp
Picture of wideopen231
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Well sine it is 3/4 of a 350 sbc I woulf think you should be able to build same as 350 and get at least 3/4 the power and really figure little more.They run pretty good in factory trim. We have had 2 Astro vans with them.Never been nice to them and they took it and kept getting it.

I have always wanted to build a 4.3 to see how strong it would run. Another comparison would be to a 283 since cubic inches is cubic inches.

If you luck runs like mine you will build it get it to track and the glue shortage will be over and they will be spraying more than ever.

Are planing to build with all the goodies you can or go mild build with good heads,cam and maybe high compression.

Wondering how many go fast pieces are out there for a 4.3.


Your first mistake was thinking your opinion made a d a m n

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Posts: 3354 | Location: Greensboro NC | Registered: May 24, 2011Reply With QuoteReport This Post
DRR Trophy
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The 3800 V6 with factory Eaton M90 supercharger which came in Grand Prix, and some park avenues, had pretty stout rods and crankshafts. Cams are available as well as headers and those little superchargers with water cooled intercoolers that sandwich underneath the blower, they are capable engines.
 
Posts: 57 | Location: st louis mo | Registered: April 15, 2012Reply With QuoteReport This Post
DRR Pro
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quote:
Originally posted by Footloose:
If the tracks are gonna be slick because of the glue shortage,I am thinking I have a 4.3 v6 and a 283. Could you run 8.0 with the v6? 1/8th mile?


Even if you could make it work with the V6, what about that 283? I mean hey, you wouldn't exactly be reinventing the wheel. Smile Take care. Tom Worthington


If it seems that bracket racing has gotten too expensive for you, maybe you are just doing it wrong.
 
Posts: 1075 | Location: Rocky Mount, NC | Registered: December 01, 1999Reply With QuoteReport This Post
DRR Sportsman
Picture of Busted Knuckles
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Cranks in the 3.8L and 4.3L are the weak point with offset ground rod pins.
The 3.8L is a baby LS right down to its symmetrical port heads and deep skirted block. Find a forged crank and some good rods and give 'er hell!


Organized people are just too lazy to look for their $h!t.
 
Posts: 469 | Location: Texas USA | Registered: November 09, 2002Reply With QuoteReport This Post
DRR S/Pro
Picture of The Bozman
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I have been to the grocery store in about 13 minutes with a 3.8L.


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Posts: 2487 | Location: Gilmer, Texas | Registered: June 25, 2002Reply With QuoteReport This Post
DRR Sportsman
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I’ve been 8.9x@150 at 2200 lbs.
 
Posts: 911 | Location: my own little world | Registered: July 20, 2005Reply With QuoteReport This Post



DRR Pro
Picture of SlyFox
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On the street, the fuel injected 3.8's were smooth and sweet, and the 4.3's were rough and rougher.


Mike
 
Posts: 1452 | Location: Marietta, GA | Registered: December 09, 2005Reply With QuoteReport This Post
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Picture of wideopen231
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Had two n4.3's an d rarely issue with them. Not sure what would be rough about them. Lots of miles on each above 250k


Your first mistake was thinking your opinion made a d a m n

America home of free. Brought to you by 2nd amendment.
 
Posts: 3354 | Location: Greensboro NC | Registered: May 24, 2011Reply With QuoteReport This Post
DRR Trophy
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the stock 4.3's were kinda brash. They made acceptable torque down low but fell off quickly, and they didn't make a lot of horsepower being 262". They never really impressed me. The 3.8's were the sweetheart GM v6's, liked them better than the 4.3's. But the 3.8's, where were a lot of variants and parts don't interchange between some of them so you have to be careful. This is speaking of the Buick based 3.8, not the Chevy 3.8 (which was a 75% of a 305 and 25% of the power).

In years past there were some Nascar V6's. Shared-pin oddfire crankshafts, they made around 600hp give or take. Local guy runs one on a dirt track and does really well with it given the rule breaks for having a 6 cylinder engine. The downside is that they sound like absolute garbage! I hate the sound of any v6 I don't believe there is one that sounds "good". So on that, run the 283 until it busts and by then maybe they'll have some glue. That or they'll be forcing us all to build electric drag cars.
 
Posts: 80 | Location: Il,IL | Registered: March 22, 2021Reply With QuoteReport This Post
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