hei...8 cyl to 6 cyl

[blazin_blazer]

i have a 94 astro van w/4.3L....i wanting to strip all the computer crap off of it and buy a carb intake, and put in a hei.

so i have a question....can you use a v8 hei in a v6, by putting a 6 cyl cap on the v8 dizzy?

also any opinions about going to carb on the 4.3? price wise how does the carb intake compare money/dependability versus buying the closed loop computer to keep the efi?

 

[big dan]

Im pretty sure they are different. checked the part numbers where I work and they come up different for hei v6 and hei v8 from the same years. not sure what is different though, it may work.

 

[BILTIT]

You would need to change the reluctor ring? under the rotor aswell provided the body will fit properly in the v6.

 

[4X4HIGH]

A 94 already has HEI but with a remote mounted coil. There is no reason to switch to the older style coil in cap type HEI.

 

[USSkoval]

Except the small-cap dizzy is computer controlled advance. I see a vacuum advance 4.3 hei in the yards from time to time, you may be able to just switch the caps though.

 

[blazin_blazer]

thanks

A 94 already has HEI but with a remote mounted coil. There is no reason to switch to the older style coil in cap type HEI.

so i can keep the same dizzy when i go to a carb intake, and even be able to wire up a hotter coil!

i wasn't sure if the dizzy hooked up to the computer in anyway, its hard to see the rear of the engine in that van....

when you put in a 4.3L(which is obviously shorter than a v8) does it move the trans forward or are the motor mounts located on the v6 block, so engine to bellhousing stays in the same location as when a v8 is in the chasis?

 

[3 on the tree]

Go find a 3.9 V6 dist. Mid 80s Camaro engine.

 

[pauly383]

http://www.edelbrock.com/automotive_new/mc/manifolds/chevy_v6_perf.shtml
http://www.proformparts.com/mistore...&hdwt=31101&loc=101&dealer=&company_id=100719

 

[4X4HIGH]

Ok, i read your first post to quickly. You'll need to swap in a vacuum advance dizzy if you're going with a carb.

The motor mounts to the bellhousing are the same between SBC, BBC and the 4.3 V/6.

 

[thedrip]

the distributor body is the same, you need to find an even fire v6 module for it though (1984-1985 astro van w/ v6 will work just fine for parts interchange), as well as an even fire cap for it (same van year will work for interchange info). Don't use a module or cap from a 229 v6 car, they are odd or semi-odd fire engines.