HEI fitting question
 

I have been looking at 4X4 builds and on some builds the HEI fits and some don't. But what my question is does it matter if it is a K10 or K20 stick or auto?

Thanks Baron

Re: HEI fitting question
 

Not really, it's because the engine sits far back on the firewall. Fresh body mounts will help a lot or a 1" body lift

Re: HEI fitting question
 

My 60K20 had high valve covers and a standard points Dizzy. The valve covers hit the firewall and the distributer was close but fit. I tried to put a HEI on but the back was really tight against the firewall. I did a little massaging with a body hammer and made it work. Glad I did it!!!

Re: HEI fitting question
 

Oh yeah, mine is a standard 4 on the floor.

Re: HEI fitting question
 

Great question..... wish I could offer a definitive answer. Lacking that, I will tell you (In case you are building a database) that it fit my '72 K20 (350/350) just fine. Not a lot of extra room, but nothing hit either. I did have to remove the cap before I could install the HEI.

Re: HEI fitting question
 

Yes building data base have 383 with tall valve covers (dang roller rockers). Doing most of the work by my self but not the body work. Got a complete rolling chassis just swapping everything over and getting a parts list together.

Re: HEI fitting question
 

fit my 71 k10 fine 350/sm456. I didn't have to take the cap off to install

Re: HEI fitting question
 

From experience
68 K10 327/4 speed not even close. Put a MSD instead and because it was slightly taller than stock I had to take cap off to install.

68 K10 suburban 327/4 speed appears to be same clearance but fresh bushings I will be putting the same MSD in soon and will report back

Re: HEI fitting question
 

Anything new to report there 68?

Re: HEI fitting question
 

72 K5 Blazer - Delco HEI went on nicely. Tight but right.

Re: HEI fitting question
 

I put an HEI in my '70 GMC K2500 and it fit with no issues. 350/TH350 in stock location.

Re: HEI fitting question
 

My experience:
1971 K10 350 4 speed HEI fit.
1971 Blazer 4x4 350 TH350 HEI fit.
1971 Blazer 4x4 350 TH350 HEI fit. (another Blazer)
They were all a little close, but they all fit. All had original body mounts, so were probably sagging a bit.

Re: HEI fitting question
 

Okay how about tall valve covers???

Re: HEI fitting question
 

Aren't there smaller cap HEI distributors? I was about to post a question concerning this and then I saw this thread. I have very little room (maybe 1/8") between my cap and firewall on my 72 K10 w/350 sb. I'm now getting some popping from my exhaust and wondered if maybe it has something to do with my #5 plug wire resting tightly against the firewall. I really haven't done any diagnostics yet to find the problem, but wanted to try a smaller cap distributor

Re: HEI fitting question
 

Hei is a large cap rotor with coil built in on top of the cap.

Re: HEI fitting question
 

[QUOTE=enigma;7342021]Okay how about tall valve covers???[/QUOT
you will have to change or modify (lengthen) the alt bracket

Re: HEI fitting question
 

What about something like this one? Is this a points distributor or does it need something like one of those MSD modules?

Re: HEI fitting question
 

that is more like stock size will fit no prob but will have to have separate coil.