hei upgrade - The 1947 - Present Chevrolet & GMC Truck Message Board Network

76bonanza · 03-22-2003, 01:14 PM

I am looking into upgrading my stock hei I was thinking maybe the petronix performance hei or maybe an spark box or something. Any thoughts would be great and about how much power can I gain.

Also any advice on headers not looking for looks just performance.

Thanks

Love the board.

__________________

*rage'nrat638* · 03-22-2003, 06:54 PM

get msd ing. products theres a post about no spark on one of these boards where everybody (some) people talk....even a pic.
of msd stock dist. modual.. if you get a billet dist.about 200.00
(a great one)what i run, with a msd 6 al box it comes with a rev.
limiter, Wind it up baby check it out...the only thing i would buy!!
i also have a msd multi function control box thats really cool
can retard on start-up..set burn out rev. limit. trans brake rev limit
so on so on & so on...must check out MSD mark

bigblock73 · 03-22-2003, 07:11 PM

I agree with Mark, the 6AL is an excellent investment.

You can also get a MSD hei module for your current distributer...that will help as well.

You might not gain lots of power here, but throttle response will be better making your truck leave the line quicker and run better overall.

-Jeff

*rage'nrat638* · 03-22-2003, 07:15 PM

you could fire a spark plug in a bucket of oil with MSD

gldevall · 03-22-2003, 07:27 PM

What about the 6A? Do you really need the 6AL with the rev limiter?

76bonanza · 03-22-2003, 07:55 PM

ya how about the 6a as i dont nead a rev limiter also do I need a new distrubuter or will my old one work? Do I just buy the 6a and hook it up to my dist? what about the hei kit with the 6a?

Thanks

*rage'nrat638* · 03-22-2003, 10:26 PM

hay ,,,,you need to decide if you want your old dist. with just a
new msd controll modual ,,,,or make the big leap and spend
$400.00 and buy a new dist. and controll box thats what i would do(the big leap) it will be the best thing you did

CHECK OUT THIS WEB SITE www.msdignition.com......
if your dist.is a(4 pin) coil#pn8225----module#pn8364.....
these two parts will liven up your stock system....
they also have (the ultimate hei kit) pn#8501 which includes
cap&rotor with the two parts above.....

msd super hei kit pn#8400 (6a control box)no rev limiter
comes with coil-box-coil wire-coil bracket-hei dust cover the whole bit .......you pull the old stuff out and throw it as far as you can
(hit the mustange next door) WHOOOO all that to use your old dist. spent about 1/2 hr. looking up these parts hope you do something with this.....MARK

*rage'nrat638* · 03-23-2003, 01:10 AM

check out my last post

Senor_paco · 03-23-2003, 02:46 AM

Yuo know, I might get a Pertronix. but speaking for the cheapskates out there, when I recurved my dist, I put a Supercoil on it, and it has been great. Of couse not as good as repalcing the whole system, but good nonetheless. I get a nice, purple-white spark, as opposed to the reddish blue of the stock coil.

PHOENIX · 03-24-2003, 11:14 AM

Stay away from Petronix. I know a few guys who have ran them in different vehicles and had nothing but problems. I would stay away from them from what I have seen and heard.

EDIT:
Oh yeah I have the msd ignition module and coil. Everything runs fine and smoother then stock. Didnt really notice any difference except idle is smoother and it dropped my idle speed down. I bumped it back up, thought it was odd that it changed that.

LOHRTBT · 03-24-2003, 11:54 AM

MSD,..Im about to do it also.

03-22-2003, 01:14 PM	#1
76bonanza Senior Member Join Date: Mar 2003 Location: St robert Mo Posts: 2,001	hei upgrade I am looking into upgrading my stock hei I was thinking maybe the petronix performance hei or maybe an spark box or something. Any thoughts would be great and about how much power can I gain. Also any advice on headers not looking for looks just performance. Thanks Love the board. __________________ __________________ 1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO

03-22-2003, 06:54 PM	#2
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	msd get msd ing. products theres a post about no spark on one of these boards where everybody (some) people talk....even a pic. of msd stock dist. modual.. if you get a billet dist.about 200.00 (a great one)what i run, with a msd 6 al box it comes with a rev. limiter, Wind it up baby check it out...the only thing i would buy!! i also have a msd multi function control box thats really cool can retard on start-up..set burn out rev. limit. trans brake rev limit so on so on & so on...must check out MSD mark

03-22-2003, 07:15 PM	#4
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	o yea you could fire a spark plug in a bucket of oil with MSD

03-22-2003, 07:27 PM	#5
gldevall Registered User Join Date: Mar 2003 Location: Walker, LA Posts: 2,925	What about the 6A? Do you really need the 6AL with the rev limiter? __________________ Gary -1986 SWB: lowered 4/6, SOLD!!! -Best 1/4 mile: 14.51 @ 91.01 MPH -2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!! -2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels

03-22-2003, 07:55 PM	#6
76bonanza Senior Member Join Date: Mar 2003 Location: St robert Mo Posts: 2,001	ya how about the 6a as i dont nead a rev limiter also do I need a new distrubuter or will my old one work? Do I just buy the 6a and hook it up to my dist? what about the hei kit with the 6a? Thanks __________________ 1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO

03-22-2003, 07:11 PM	#3
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,826	I agree with Mark, the 6AL is an excellent investment. You can also get a MSD hei module for your current distributer...that will help as well. You might not gain lots of power here, but throttle response will be better making your truck leave the line quicker and run better overall. -Jeff

03-22-2003, 10:26 PM	#7
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	what to do hay ,,,,you need to decide if you want your old dist. with just a new msd controll modual ,,,,or make the big leap and spend $400.00 and buy a new dist. and controll box thats what i would do(the big leap) it will be the best thing you did CHECK OUT THIS WEB SITE www.msdignition.com...... if your dist.is a(4 pin) coil#pn8225----module#pn8364..... these two parts will liven up your stock system.... they also have (the ultimate hei kit) pn#8501 which includes cap&rotor with the two parts above..... msd super hei kit pn#8400 (6a control box)no rev limiter comes with coil-box-coil wire-coil bracket-hei dust cover the whole bit .......you pull the old stuff out and throw it as far as you can (hit the mustange next door) WHOOOO all that to use your old dist. spent about 1/2 hr. looking up these parts hope you do something with this.....MARK Last edited by rage'nrat638; 03-23-2003 at 01:09 AM.

03-23-2003, 01:10 AM	#8
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	all new info check out my last post

03-23-2003, 02:46 AM	#9
Senor_paco Registered User Join Date: Mar 2003 Location: San Antonio, TX Posts: 441	Yuo know, I might get a Pertronix. but speaking for the cheapskates out there, when I recurved my dist, I put a Supercoil on it, and it has been great. Of couse not as good as repalcing the whole system, but good nonetheless. I get a nice, purple-white spark, as opposed to the reddish blue of the stock coil.

03-24-2003, 11:14 AM	#10
PHOENIX Registered User Join Date: Oct 2002 Location: Phoenix, Arizona Posts: 4,703	Stay away from Petronix. I know a few guys who have ran them in different vehicles and had nothing but problems. I would stay away from them from what I have seen and heard. EDIT: Oh yeah I have the msd ignition module and coil. Everything runs fine and smoother then stock. Didnt really notice any difference except idle is smoother and it dropped my idle speed down. I bumped it back up, thought it was odd that it changed that. __________________ * AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION * Last edited by PHOENIX; 03-24-2003 at 12:50 PM.

03-24-2003, 11:54 AM	#11
LOHRTBT BeWarE tHe eViL CrAnkTOe! Join Date: Oct 2002 Location: Yukon, OK Posts: 3,605	MSD,..Im about to do it also. __________________ ~Dave~ You can call me Mike, Mike Oxlong - 1986 Chevy SWB - Stock for now - *1986 Chevy Custom SWB* *Stolen 6/26/05* - 1985 Chevy SWB SOLD - 1999 T/A Some mods www.cardomain.com/id/ramairdave AIM Screenname - Jester84



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