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  Hei distributor, "any good"?

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Author Topic:   Hei distributor, "any good"?
Skeeter
Gearhead

Posts: 112
From: California
Registered: Dec 2001

posted 03-17-2003 05:05 PM     Click Here to See the Profile for Skeeter   Click Here to Email Skeeter     Edit/Delete Message   Reply w/Quote
What do you think of these? If not much what would you suggest for a 425+hp motor.

Also, are most of you running a stock water pump?

Thanks,
Jason

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69 Sportsroof
Gearhead

Posts: 1202
From: Valley, Alabama, USA
Registered: Mar 2002

posted 03-17-2003 08:35 PM     Click Here to See the Profile for 69 Sportsroof   Click Here to Email 69 Sportsroof     Edit/Delete Message   Reply w/Quote
I have a Desktop Dyno'd 375 HP 350 in my 73 Chevy pickup that has a stock HEI. Never had a problem with it in the 3 1/2 years I've had the truck. I've asked many times what people think of the HEI units for Ford and get a big thumbs down from most everyone on here. The Duraspark unit for Ford's comes highly recommended from folks here. I'm still undecided but leaning toward the one wire hookup you get with HEI.

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Mpcoluv
Gearhead

Posts: 945
From: Charlotte NC usa
Registered: Apr 2001

posted 03-18-2003 06:41 AM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Skeeter:
What do you think of these? If not much what would you suggest for a 425+hp motor.

Also, are most of you running a stock water pump?

Thanks,
Jason


I know some people who own and love the DUI distributor. Alex mentioned quality problems with some older units though.
Just be sure there is some sort of warranty.

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V8 Thumper
Gearhead

Posts: 3467
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 03-18-2003 08:19 AM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
GM style HEI's begin to peeter out around 4500 rpm

You'd need one mean pounder of a big block to make 425 hp/ft.lbs at or below 4500 rpm

------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9"

All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html

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V8 Thumper
Gearhead

Posts: 3467
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 03-18-2003 08:20 AM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
I run a stock-type HiPo water pump

------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9"

All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html

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69 Sportsroof
Gearhead

Posts: 1202
From: Valley, Alabama, USA
Registered: Mar 2002

posted 03-18-2003 10:43 AM     Click Here to See the Profile for 69 Sportsroof   Click Here to Email 69 Sportsroof     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by V8 Thumper:
GM style HEI's begin to peeter out around 4500 rpm

You'd need one mean pounder of a big block to make 425 hp/ft.lbs at or below 4500 rpm


The one's on the market now for small Ford's are rated up to 9000 rpm for race and 7500 rpm for street. Well within range for the power he's looking to make.

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SteveLaRiviere
Administrator

Posts: 33371
From: Saco, Maine
Registered: May 99

posted 03-18-2003 11:03 AM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
One thing to consider is heat is the enemy of electronics. If you take a distributor which is pretty warm in the first place, put a module inside it, then toss an ignition coil on top of the cap, well, you're asking for it.

Seriously, if you get one, carry a spare module, silicone gel, and rotor.

One of the magazines I get {Car Craft, Popular Hot Rodding?} showed a guy with some gm that carried a whole HEI distributor in his trunk. Anyone else see that?

------------------
'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150

Please remember our sponsors,
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[This message has been edited by SteveLaRiviere (edited 03-18-2003).]

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Rory McNeil
Gearhead

Posts: 1210
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 03-18-2003 11:59 AM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
Like Steve mentioned, GM`s HEI distributors are well known for heat related failures of the module, which is buried inside the dist. The Ford & MoPar modules were mounted on the inner fenders & were much more reliable. It is very easy to install a OE Ford "DuraSpark" ignition system, & they work very well. Some people don`t like the looks of a seperate module box, but in my opinion, that huge, clunky GM HEI cap is much uglier, plus there is no reason you can`t relocate the Ford module out of site. On my 428 Fairmont, I run a stock 390 truck DuraSpark dist with a limited & speeded up advance curve, along with a MSD 6T module, with a rev. limiter & 2 step, and everything is under the dash, so all thats under the hood is the dist. An added benefit: NO GM PARTS!!!!

------------------
78 Fairmont 428 4 speed [email protected]
80 Fairmont 302 5 speed [email protected]
85 Mustang NHRA Stocker under construction, 302 5 speed
59 Meteor (Canadian Ford) 2 dr sedan 332, auto
74 F350 ramp truck 390 4spd

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SundanceKid
Gearhead

Posts: 1001
From: UT
Registered: Feb 2001

posted 03-18-2003 12:24 PM     Click Here to See the Profile for SundanceKid   Click Here to Email SundanceKid     Edit/Delete Message   Reply w/Quote
For about the same price you can get a Duraspark distributor and an MSD ignition and never look back.

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Mpcoluv
Gearhead

Posts: 945
From: Charlotte NC usa
Registered: Apr 2001

posted 03-18-2003 04:42 PM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by SteveLaRiviere:
One thing to consider is heat is the enemy of electronics. If you take a distributor which is pretty warm in the first place, put a module inside it, then toss an ignition coil on top of the cap, well, you're asking for it.

Seriously, if you get one, carry a spare module, silicone gel, and rotor.

One of the magazines I get {Car Craft, Popular Hot Rodding?} showed a guy with some gm that carried a whole HEI distributor in his trunk. Anyone else see that?


You would think that a front mounted distributor would run a ittle cooler that a rear mounted Chevy unit because the engine fan should blow some air (although warm) over it.

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SteveLaRiviere
Administrator

Posts: 33371
From: Saco, Maine
Registered: May 99

posted 03-18-2003 06:48 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
Marginally, but it's still bolted to a heat plant.

------------------
'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150

Please remember our sponsors,
Mustangs Plus, NPD, Osborn Reproductions, MyFordPerformance.com, and FordRamAir.com

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