HEI... go do it right now... careful though... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

speesh · 01-12-2003, 09:05 PM

I just spent the day installing my HEI, I stole it off of my 78 Malibu wagon.....running the wire was the hardest part. Also I leaned against my heater hose and busted the dang heater core! So be careful about that........
Then when I got done it just cranked and cranked, so I thought I screwed up.... sat there thinking and realized I never plugged in the cap! Plugged it in and Whammo it started instantly! Ran it around in the desert, went out on the highway, turned it off and on a dozen times. It starts much better, and the all the hesitation is gone. Can't wait to see how the mileage improves. So Go Do It NOW!!!! you won't be sorry....!

kaycee · 01-12-2003, 10:14 PM

10-4 That is the best upgrade a guy or gal can do to these ol Chevy's in my book especially for the $$$

mtdave2 · 01-12-2003, 11:54 PM

absolutly. even for the guys like me who like the original type trucks. its one upgrade that everyone should do. points are a pain in the ass...

barn9 · 01-13-2003, 12:16 AM

I totally agree! Mine has been on for 3 years, and I would never consider having points on any motor again.

GMC Jim · 01-13-2003, 02:59 AM

have a qualified HEO didtributor rebuild shop set the centrifugal advance curves for the engine it is installed in... There is a wide difference among advance curves.. and also check the vacumm advance to be sure total advance is within specs...
....And.... set the spark plug gap at .045
( I have the advance curve info as contained in GM/AC Delco Tune Specs., manual SD-100...This manual gives tune-up specs 1971-1980. I specifically like the specs that state the total advance (centrifugal & vacuum) @ 2000 RPM....If you have the proper timing lite; makes it super easy to set timing ............Jim

Project1970 · 01-13-2003, 05:53 PM

Indeed. I went HEI and will -never- go back. The improvement over a points setup is just sick.

'72 Shorty · 01-13-2003, 06:15 PM

Definitely one of the best things you can do. Once I got the dead module sorted out my HEI kicks the *stuff* outta points.

And I've broke that bottom hose off the heater core 3x. ARRRRRRGH

lukecp · 01-13-2003, 07:05 PM

I agree with everyone else, HEI kicks a$$. Been in my truck for 2 years and 20,000 miles with zero problems.

Did anyone else notice that a points-equipped SBC sounds about twice as loud through the exhaust at idle as a HEI equpped SBC? Why is this?

our64 · 01-13-2003, 08:30 PM

Ok Im sold, but the question have is will a HEI from a 250 6 cyl fit in my 230 CID

71k5 · 01-13-2003, 08:58 PM

I like my HEI also; does anyone have trouble with their HEI cap rubbing against the firewall? 71 Blazer 350/th350.

Brad · 01-14-2003, 12:31 AM

Our64, yes it will.

01-12-2003, 09:05 PM	#1
speesh Senior Member Join Date: Jul 2001 Location: Ridgecrest, CA Posts: 318	HEI... go do it right now... careful though... I just spent the day installing my HEI, I stole it off of my 78 Malibu wagon.....running the wire was the hardest part. Also I leaned against my heater hose and busted the dang heater core! So be careful about that........ Then when I got done it just cranked and cranked, so I thought I screwed up.... sat there thinking and realized I never plugged in the cap! Plugged it in and Whammo it started instantly! Ran it around in the desert, went out on the highway, turned it off and on a dozen times. It starts much better, and the all the hesitation is gone. Can't wait to see how the mileage improves. So Go Do It NOW!!!! you won't be sorry....! Attached Images __________________ 57 suburban(sitting in the driveway), 2 69 C20 longbeds (sitting in the field ) and a 2003 8.1 Suburban Endeavor to persevere. "All of a sudden, I'm the old timer!" Some old timer on American Pickers.

01-12-2003, 10:14 PM	#2
kaycee Registered User Join Date: Jan 2000 Location: Wyoming USA Posts: 2,449	SPARK O MATIC 10-4 That is the best upgrade a guy or gal can do to these ol Chevy's in my book especially for the $$$ __________________ 2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327

01-12-2003, 11:54 PM	#3
mtdave2 newly minted old timer Join Date: Dec 1999 Location: Hudson WI Posts: 3,521	absolutly. even for the guys like me who like the original type trucks. its one upgrade that everyone should do. points are a pain in the ass... __________________ ____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban

01-13-2003, 12:16 AM	#4
barn9 Half a bubble off! Join Date: Jun 2000 Location: Winfield, Ks, USA Posts: 5,588	I totally agree! Mine has been on for 3 years, and I would never consider having points on any motor again. __________________ Just call me LB. '71 Cheyenne, 402BB, hauls blondes, brunettes, or redheads.

01-13-2003, 02:59 AM	#5
GMC Jim Senior Member Join Date: Dec 2002 Location: Portland, Oregon Posts: 901	have a qualified HEO didtributor rebuild shop set the centrifugal advance curves for the engine it is installed in... There is a wide difference among advance curves.. and also check the vacumm advance to be sure total advance is within specs... ....And.... set the spark plug gap at .045 ( I have the advance curve info as contained in GM/AC Delco Tune Specs., manual SD-100...This manual gives tune-up specs 1971-1980. I specifically like the specs that state the total advance (centrifugal & vacuum) @ 2000 RPM....If you have the proper timing lite; makes it super easy to set timing ............Jim __________________ '71 GMC;fleetside;PB/PS/AC/CC/402 Eng./Custom Paint/110,000act miles/3 fuel tanks(52gal).

01-13-2003, 05:53 PM	#6
Project1970 14.1 @ 96MPH Join Date: Jul 2001 Location: Mesa, AZ Posts: 2,811	Indeed. I went HEI and will -never- go back. The improvement over a points setup is just sick. __________________ Project1970 - LS1 Swap Complete!

01-13-2003, 06:15 PM	#7
'72 Shorty I finally got an avatar Join Date: Jan 2003 Location: Cheney, WA Posts: 180	Definitely one of the best things you can do. Once I got the dead module sorted out my HEI kicks the stuff outta points. And I've broke that bottom hose off the heater core 3x. ARRRRRRGH __________________ -72 C-10 short step (straight line only) 12.922/102.28 -69 C-20 on Propane (DD) -69 C-10 -56 Mack B-753LS (tow rig) -94 Chev K2500 Short Ex-Cab -89 Isuzu Trooper...Kinda -03 Kawasaki KFX-400 -05 Suzuki DRZ-400S Last edited by '72 Shorty; 01-13-2003 at 06:17 PM.

01-13-2003, 07:05 PM	#8
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	I agree with everyone else, HEI kicks a$$. Been in my truck for 2 years and 20,000 miles with zero problems. Did anyone else notice that a points-equipped SBC sounds about twice as loud through the exhaust at idle as a HEI equpped SBC? Why is this? __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

01-13-2003, 08:30 PM	#9
our64 http://public.fotki.com/street Join Date: Nov 2002 Location: Winnipeg, Canada Posts: 169	Ok Im sold, but the question have is will a HEI from a 250 6 cyl fit in my 230 CID

01-13-2003, 08:58 PM	#10
71k5 Registered User Join Date: Feb 2002 Location: Manchester, PA Posts: 138	I like my HEI also; does anyone have trouble with their HEI cap rubbing against the firewall? 71 Blazer 350/th350.

01-14-2003, 12:31 AM	#11
Brad Out of the carpool lane. Join Date: Jan 2000 Location: Clark Co, WA Posts: 5,672	Our64, yes it will. __________________ 1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten...

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