HEI Fit In A 4X4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JOE BOB · 06-05-2004, 03:00 AM

The 350 in a 4X4 is even closer to the firewall than a 2 wheel drive. Does anyone know for sure if an HEI will fit in a 4X4? Thanks, Joe Bob.

Alexis · 06-05-2004, 03:08 AM

Yes, my 350 is sitting in the 6cyc positions and the HEI fits just right. You got to have the cap and rotor off but it fits.

**'68OrangeSunshine** · 06-05-2004, 04:37 AM

I gotta 350 w/HEI set up in my '71 GMC Jimmy -- like a K/5 but GMC's paperwork calls it a "K/1500." Third engine --at least as I know-- but it came from the factory w/ a 350. So I hope it's the stock set up. It's a tight fit, but I didn't even have to ding on the central firewall. Distributor install is a 3-step process, however, first the candlestick proper, then rotor, then cap, then wires. You gotta layer it in gradually. With the old points set up, you could leave the plugwires all thatched together and just snap the cap on in 2 places. The HEI uses 4 screws that you need a 90 degree screwdriver to set. Tough reach until you get the right tool set up.

GMC AMI · 06-05-2004, 06:23 AM

Summit has better than stock HEI units that are smaller in dia. and easier to work with in the tight areas if you have the money to buy a new dist.

GM72K10 · 06-05-2004, 06:59 AM

My 72 K10, 350, Auto and 72 K25 350, 4M both have been converted to HEI, stock motor mounts, etc, no problem!

junkyardjohn · 06-05-2004, 11:23 AM

BOTH OF MY 71 & 72 BLAZERS HAVE STOCK G.M. HEIs IN THEM, & ROOM IS NOT AN ISSUE.

(QUOTE) Summit has better than stock HEI units that are smaller in dia. and easier to work with in the tight areas if you have the money to buy a new dist. (QUOTE)

THE NICE THING ABOUT GM HEIs IS THAT YOU CAN GET ONE IN ANY TOWN IN THE USA IF YOURS QUITS.

JOHN

**FRENCHBLUE72** · 06-05-2004, 09:07 PM

Yep got one in my k-5 blazer..

JOE BOB · 06-05-2004, 10:38 PM

Thanks guys!

06-05-2004, 03:00 AM	#1
JOE BOB Registered User Join Date: May 2000 Location: Ballston Lake, NY Posts: 161	HEI Fit In A 4X4 The 350 in a 4X4 is even closer to the firewall than a 2 wheel drive. Does anyone know for sure if an HEI will fit in a 4X4? Thanks, Joe Bob.

06-05-2004, 06:23 AM	#4
GMC AMI Registered User Join Date: Apr 2004 Location: The Other Maine! Posts: 2,236	HEI fit Summit has better than stock HEI units that are smaller in dia. and easier to work with in the tight areas if you have the money to buy a new dist.

06-05-2004, 06:59 AM	#5
GM72K10 Next! Join Date: Jan 2003 Location: Eastern Pa. Posts: 2,479	My 72 K10, 350, Auto and 72 K25 350, 4M both have been converted to HEI, stock motor mounts, etc, no problem! __________________ 86 K30 CUCV M1028A1 86 K30 CUCV M1028a2 dually 86 K30 C&C 6.2 4:56s, 4M, 11,000 gvw, ex fire truck, now lowboy dump More square bodies and CUCVs than I care to admit to 2020 Silverado K3500HD Work truck

06-05-2004, 11:23 AM	#6
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,427	BOTH OF MY 71 & 72 BLAZERS HAVE STOCK G.M. HEIs IN THEM, & ROOM IS NOT AN ISSUE. (QUOTE) Summit has better than stock HEI units that are smaller in dia. and easier to work with in the tight areas if you have the money to buy a new dist. (QUOTE) THE NICE THING ABOUT GM HEIs IS THAT YOU CAN GET ONE IN ANY TOWN IN THE USA IF YOURS QUITS. JOHN __________________ junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES// LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST

06-05-2004, 03:08 AM	#2
Alexis Member since 2000 Join Date: Dec 2000 Location: Mountain View Ca / Mexico Posts: 7,879	Yes, my 350 is sitting in the 6cyc positions and the HEI fits just right. You got to have the cap and rotor off but it fits.

06-05-2004, 04:37 AM	#3
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,171	I gotta 350 w/HEI set up in my '71 GMC Jimmy -- like a K/5 but GMC's paperwork calls it a "K/1500." Third engine --at least as I know-- but it came from the factory w/ a 350. So I hope it's the stock set up. It's a tight fit, but I didn't even have to ding on the central firewall. Distributor install is a 3-step process, however, first the candlestick proper, then rotor, then cap, then wires. You gotta layer it in gradually. With the old points set up, you could leave the plugwires all thatched together and just snap the cap on in 2 places. The HEI uses 4 screws that you need a 90 degree screwdriver to set. Tough reach until you get the right tool set up.

06-05-2004, 09:07 PM	#7
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,594	Yep got one in my k-5 blazer..

06-05-2004, 10:38 PM	#8
JOE BOB Registered User Join Date: May 2000 Location: Ballston Lake, NY Posts: 161	Thanks guys!



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