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09-12-2007, 05:26 AM
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#1 |
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They call me the Breeze...
 
Join Date: Jul 2007
Location: New York
Posts: 2,251
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Low profile HEI cap
I am ready to install HEI in my K20, I was concerned about firewall clearance and was wondering if anyone makes a shorter, low profile cap? Any part # or where to find one is apprciated.
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Mike 69 K20 "Beer is proof God loves us and wants us to be happy"....Ben Franklin |
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09-12-2007, 01:27 PM
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#2 |
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Registered User
Join Date: Jan 2007
Location: Fairview, ks
Posts: 203
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Re: Low profile HEI cap
I'm using a regular cap and have no clearance problems; '71 GMC C1500
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09-12-2007, 01:44 PM
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#3 |
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Active Member
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Low profile HEI cap
Not sure who would make a shorter/smaller version but I would do a search on aftermarket HEI distributors and see what pops up.
The clearance problems that I've seen is when the truck is converted over from a 6 cylinder. On my 69, I used the donor truck brackets and used the forward holes. No problems with clearance either. One has to make sure the driveshaft to transmission and all of the other stuff lines up correctly, though. |
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09-12-2007, 02:03 PM
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#4 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Low profile HEI cap
theres quite a few companies with thr regular points size hei dizzy options
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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09-12-2007, 02:12 PM
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#5 |
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Next project: 1970 K10
Join Date: Feb 2004
Location: Fort Collins, Colo 80524
Posts: 6,685
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Re: Low profile HEI cap
You shouldn't have any clearance issues. My 68 has the V8 in the I6 location, and the HEI has plenty of clearance.
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Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!! 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE Last edited by glock35ipsc; 09-12-2007 at 02:14 PM. |
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09-12-2007, 02:51 PM
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#6 |
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Registered User
Join Date: Jul 2006
Location: Fair Oaks, CA
Posts: 475
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Re: Low profile HEI cap
I got enough room to pull the tranny bolts from above so hei dizzy clearence is not an issue, however if you use a early 90's dizzy they had the coil seperate from the cap but the height is not much different circumference is a little smaller but not much, if theres an issue buy a pionts conversion for your factory dizzy
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1968 Short Fleet 350/700r4 http://67-72chevytrucks.com/vboard/s...d.php?t=249435 1997 Bagged XtdCab Vortec350/4L60e http://67-72chevytrucks.com/vboard/s...44#post2286144 1993 XtdCab Longbed 4x4 6.5Turbo/NV4500 "Daily Driver" 1985 Toyota XtdCab 4x4 22re/W-56/Dual T-cases, Doug Thorley Header, Homebrew front and rear spring packs, Tons of Mods to suspension and drivetrain, 35" boggers, coming soon ARB's and 5.29's, Possible 4.3/700r4 swap Last edited by Scott68-93-97; 09-12-2007 at 02:51 PM. |
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09-12-2007, 08:00 PM
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#7 |
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Senior Member
Join Date: Jan 2005
Location: Raleigh, NC
Posts: 894
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Re: Low profile HEI cap
I *just* went through this a week and a half ago with mine, bought a used HEI with an ACCEL coil and it didn't clear the firewall on my Blazer. I picked up a new stock-style coil and cover and it fits OK. Close, but OK, even with the oversized connectors on the plug wires.
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-Chris Building a stripper, one part at a time: 1969 K5, 307, 3spd, 3 seats, hard top. Added Pwr Discs, Pwr Steering, Aux Battery, T-case Skid, Lighted Sidemarkers, HEI, Lock-Right Diff, ECE Class IV Hitch, 32" MT/Rs. Parts to Install: Hand Throttle, Console, Tow Hooks, Dual Horns, AM-FM, Dealer Swing-Away Tire Carrier, Gas Tank Skid. Also building a 1950 Willys CJ-3A and off-roading a 2001 Nissan Frontier on 1-Ton Portals... |
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09-12-2007, 09:36 PM
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#8 |
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Registered User
Join Date: Dec 2005
Location: Bellingham, WA
Posts: 167
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Re: Low profile HEI cap
I have an HEI on my BB 70 GMC no problems whats so ever plenty of clearence pulled it out a few times and not one problem.
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70 GMC LWB Fleetside, 402BB, TH400 90K original only cost $50. |
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09-13-2007, 12:49 AM
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#9 |
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Senior Member
Join Date: Nov 2005
Location: northwestern wi
Posts: 2,111
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Re: Low profile HEI cap
i just pulled my dizzy today to change the intake. it is so close i had to rotate it to get at one of the cap hold down screws it fits and it works but very tight. another reason to install a caddy engine
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common sense isn't so common anymore |
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09-13-2007, 05:54 AM
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#10 |
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They call me the Breeze...
Join Date: Jul 2007
Location: New York
Posts: 2,251
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Re: Low profile HEI cap
Thanks for all the advice guys, I guess I will stick with the stock HEI cap.
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Mike 69 K20 "Beer is proof God loves us and wants us to be happy"....Ben Franklin |
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