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11-29-2008, 07:16 PM | #1 |
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Location: Fort Smith,AR
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Need help on building a 4.3 up.
First off, not mine, my buddy has a '87 Blazer with a little TB 4.3 with auto. I have seen these things built up, and remember one, but that was like 6 years ago. He doesn't want a 5.7 swap, and just wants things to make it a little more powerful. Maybe a cam, headers, and maybe swap it to a carb, or something. I'm lost, at where to get anything, and what to do.
Far as I know, its basically a 5.7 minus 2 pistons. I'm sure there is a lot more. Can anyone help me? |
11-29-2008, 11:37 PM | #2 | |
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Re: Need help on building a 4.3 up.
Quote:
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11-29-2008, 11:44 PM | #3 |
BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
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Re: Need help on building a 4.3 up.
Call this company for TBI upgrades. http://www.cfm-tech.com/GM_tbi_tuning_tips.htm
Last edited by gchemist; 11-29-2008 at 11:44 PM. |
11-30-2008, 11:59 AM | #4 |
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Location: Fort Smith,AR
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Re: Need help on building a 4.3 up.
Thanks guys. He doesn't know anything about what he wants, but he know he wants sound, or lopey cam. I'm trying to dig up what I can, and get him prices. I'll be the one that does the work, but I have only done SB, and BBC's, with the exception of some ricer engines.
Is there a site, or something that I can get some tourqe specs? Are the rods, and pistons the same as the 350, or am I on the wrong track? Thanks for the sites. |
11-30-2008, 08:37 PM | #5 |
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Re: Need help on building a 4.3 up.
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12-01-2008, 01:18 PM | #6 |
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Re: Need help on building a 4.3 up.
I could use 1 more piece of advice. Lets say we do a noticeable lopey cam, then the TB is gone of course for the size. I think, IMO, that it may be cheaper to find a good 350 block, and build it up with a little cam, use the 4.3 mounts, and get a 350t under there.
Would that be a better way to go? Last I checked, 4.3 headers, intake, TB upgrade, and cam was over a grand. Now, this is after I ran into problems with this shop, and now I dislike them...lol, and it was like 4 years ago too. Thanks for the sites. |
12-01-2008, 10:33 PM | #7 |
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Re: Need help on building a 4.3 up.
V8 V8 V8 V8 V8 V8 V8! I think you know how I feel. I like my 4.3, but a V8 would be saweeeeeeeeeeeeeet!
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12-02-2008, 07:59 AM | #8 |
blood type; Retumbo
Join Date: Jan 2004
Location: next to my reloading bench
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Re: Need help on building a 4.3 up.
check into a CPI setup. you could get a used one and I think he may be happy.
they came in the 92-95 S10s. they are snappier than the later CSFI. |
12-02-2008, 11:41 AM | #9 |
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Re: Need help on building a 4.3 up.
He's on a budget, and thats not the way to go, because its better to save up for whats best for your goal. Thats why after being on this site, I have made a list for my '67, and I save up, and buy whats next on it when I can.
He's goal is sound, and nothing else. He wants that lope, something so people can know your there. I know a V-8 would be best, but I don't think he's up to that kinda money for a swap, because he has a good 4.3 now. I'll look at the sites posted on here. |
12-02-2008, 10:14 PM | #10 |
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Location: Moore, Oklahoma
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Re: Need help on building a 4.3 up.
If we're dickering over a grand --- making a V-6 sound and run strong is out of the guys price range (well, they run pretty strong stock .....but)
A 350 swap should be done if we're not worried about AC. Or he could put a set of Flowmaster 40 duals on it
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Are you retired too? Nonsense! I'm in my prime Last edited by streetstar; 12-10-2008 at 09:03 PM. Reason: inappropriate comment- no value added to thread |
12-04-2008, 12:12 PM | #11 |
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Re: Need help on building a 4.3 up.
4.3s cost as much or more to build compared to a 350. You have to buy a lot of the v8 parts and not use or modify them. I had to buy 16 of everything for my valve train. I had to cut the windage tray and valley pan.
Unless you want to be a little different and build the 4.3 I would get a 350 or something cooler like a LSx or a turbo 3.8. I would do the 3.8 if I had to start over with mine.
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I can still count my vehicles on two... wait three hands. |
12-05-2008, 01:52 PM | #12 |
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Re: Need help on building a 4.3 up.
I saw yesterday that Edelbrock has an cam and tbi intake kit for the 4.3. LMC has it priced at about $500. That might be something to look at.
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I can still count my vehicles on two... wait three hands. |
12-08-2008, 02:04 PM | #13 |
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Re: Need help on building a 4.3 up.
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12-25-2008, 02:07 AM | #14 |
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Location: King City, Ontario, Canada
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Re: Need help on building a 4.3 up.
well, want a cheap lump cam, pull a spark plug wire off
i know, not funny, id swap the v8. even if its stock for now, there is so much room for improvment later.
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- Jason If you can turn, Youre not going fast enough. Favorite caption: first car to 200 mph in the 1/4 mile, no parachute, drum brakes all the way around.. ..back when men were men. |
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