09-07-2015, 10:11 PM | #1 |
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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 |
09-07-2015, 10:31 PM | #2 |
Strongman Garage
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Location: Salinas, CA
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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
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Kalle 68 GMC Suburban 1500 4x4 SOLD 69 Pontiac Lemans 99 Silverado 4.8 5 speed ECSB [ Facebook Instagram Subscribe on YOUTUBE |
09-08-2015, 12:18 AM | #3 |
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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!!!
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60 K20, eaton HO52, T221, SM420, Dana 44 closed 78 K20 Burb, 14 bolt, NP205, SM465, Dana 44 open 05 Dodge Ram 2500 5.9 Cummins 4x4 |
09-08-2015, 12:21 AM | #4 |
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Re: HEI fitting question
Oh yeah, mine is a standard 4 on the floor.
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60 K20, eaton HO52, T221, SM420, Dana 44 closed 78 K20 Burb, 14 bolt, NP205, SM465, Dana 44 open 05 Dodge Ram 2500 5.9 Cummins 4x4 |
09-08-2015, 01:12 AM | #5 |
20' Daredevil (Ret)
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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.
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09-08-2015, 09:23 AM | #6 |
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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.
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09-08-2015, 09:54 AM | #7 |
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Re: HEI fitting question
fit my 71 k10 fine 350/sm456. I didn't have to take the cap off to install
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Brian |
09-08-2015, 11:32 AM | #8 |
Strongman Garage
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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
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Kalle 68 GMC Suburban 1500 4x4 SOLD 69 Pontiac Lemans 99 Silverado 4.8 5 speed ECSB [ Facebook Instagram Subscribe on YOUTUBE |
10-11-2015, 11:16 AM | #9 |
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Re: HEI fitting question
Anything new to report there 68?
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10-11-2015, 11:11 PM | #10 |
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Re: HEI fitting question
72 K5 Blazer - Delco HEI went on nicely. Tight but right.
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CCCC 67 Sting Ray Coupe 327 4sp; 68 K10 Suburban 327 4sp; 69 K20 Lifted 383 4sp; 69 C80 Fire Truck 478 V6 5sp/2sp; 69 C20 Longhorn 327 4sp; 70 C30 Wrecker 350 4sp; 70 C30 Flat Bed 350 4sp; 71 C20 LWB 350 4sp; 72 K5 Blazer 350 4sp; 72 C30 Flat Bed Gooseneck Hauler with sleeper 350/TH400; 72 C20 Longhorn 402 4sp; 52 Mack LTL Supercharged Cummins 5sp x 3sp; 01 Dodge 5.9 HO Cummins 6spd; 02 Safari Trek 2430 8.1 Vortec on Workhorse Chassis; 03 Silverado 2500 HD 4wd Duramax/Allison Moved but still in the family 70 C20 Custom Camper 350/TH350; 72 K5 Blazer CST Highlander 350/TH350 Recently sent to new homes 72 C30 MoHome 402 4sp; 72 K5 Blazer Conv 350 4sp; 75 GMC 6000 Aerial 350 w Allison; 72 GMC 3500 Utility 350 4sp; 70 GMC 3500, 350 4sp |
10-14-2015, 11:32 PM | #11 |
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Re: HEI fitting question
I put an HEI in my '70 GMC K2500 and it fit with no issues. 350/TH350 in stock location.
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Zach 1970 Chevrolet Custom Camper K20 1971 GMC Super K2500, 12V/NV4500 swap in progress 1971 Chevrolet Custom C10 1972 Chevrolet Custom Deluxe C20, 5.3/4L60E 1972 Oldsmobile Cutlass Supreme, 455/TH400, 3.73 posi 2004 GMC Sierra 2500HD, LB7/Allison, CCSB 2005 GMC Sierra 1500, 5.3/4L60E, CCSB |
10-14-2015, 11:41 PM | #12 |
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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.
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10-15-2015, 08:34 AM | #13 |
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Re: HEI fitting question
Okay how about tall valve covers???
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10-19-2015, 11:12 AM | #14 |
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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
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Bill 2004 Chevy Silverado Z71 Ext Cab 1500 1972 Chevy K-10 SOLD 1967 Chevelle SS |
10-20-2015, 08:31 AM | #15 |
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Re: HEI fitting question
Hei is a large cap rotor with coil built in on top of the cap.
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10-20-2015, 09:21 AM | #16 |
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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
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Brian |
10-20-2015, 12:36 PM | #17 |
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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?
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Bill 2004 Chevy Silverado Z71 Ext Cab 1500 1972 Chevy K-10 SOLD 1967 Chevelle SS |
10-23-2015, 08:26 AM | #18 |
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Re: HEI fitting question
that is more like stock size will fit no prob but will have to have separate coil.
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