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#26 |
20' Daredevil (Ret)
![]() Join Date: May 2003
Location: Jefferson State
Posts: 13,647
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Re: Points vs HEI 1969 C/10
It's been a loooong time, but iirc, stock wires are 7mm and you'll want 8mm with HEI.
If I'm mistaken, it will be quickly pointed out. ![]()
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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#27 |
Registered User
Join Date: Sep 2008
Location: Ogden Utah
Posts: 286
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Re: Points vs HEI 1969 C/10
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#28 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Points vs HEI 1969 C/10
if the engine is stock and original, and nothing is listed in the option list on the SPID, then it'd be a 307... which your harmonic damper thickness also points to a 307.
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#29 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,980
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Re: Points vs HEI 1969 C/10
All that & a comedian too
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#30 | |
Registered User
Join Date: Sep 2008
Location: Ogden Utah
Posts: 286
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Re: Points vs HEI 1969 C/10
Quote:
Block cast. no. 3970010....302.....69....4...Z-28 Camaro 3970010....327.....69....2...Trucks and industrial 3970010....350...69-80...2 or 4 |
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#31 |
Registered User
Join Date: Sep 2008
Location: Ogden Utah
Posts: 286
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Re: Points vs HEI 1969 C/10
I was told it could be 327 too. The badges on the truck are 8/350. I have not looked this up. 1st Chevy.
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#32 | |
CAN'T FIX NOTHIN
Join Date: Sep 2006
Location: SOUTHRUST VIRGINIA !!!
Posts: 2,112
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people don't like point's because they can't get them set right , myself I love my point's , my 67 camaro has run and gave me good service for ten year's with two set's at about $6 buck's each so that's about $1.20 per year , the hei will leave you sitting beside the road with no warning too !
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1967 C10 Shortbed Fleetside Small back glass 6 cyl 3spd on the tree 3.08 gears underdash AC |
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#33 | |
laying low
![]() Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,274
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Re: Points vs HEI 1969 C/10
Quote:
I'm just curious. In the 10 years of service how many miles did you put on those points?
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Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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#34 |
CAN'T FIX NOTHIN
Join Date: Sep 2006
Location: SOUTHRUST VIRGINIA !!!
Posts: 2,112
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in 10 year's I have put 90K mile's on my 67 camaro with changing point's two time's and it is right now running good with the second set , that's just one car I have drove pre 1970 chevy's for 25 year's with point's ,
one fact that people nowaday's forget is that we drove car's with point's from 1905 till the 1970's with no trouble ! I will say this if an electric HEI type run's it run's good and when it die's it just die's and you replace part's till you fix it , with point's when they need a dwell set they give you a warning and let you know , I keep my dwell meter in they trunk of my car or glove box of my truck , and since my dad showed me how to set point's 35 year's ago I actually enjoy the 40 or 50 second's it take's to adjust them ,,, I LIKE E'M !
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1967 C10 Shortbed Fleetside Small back glass 6 cyl 3spd on the tree 3.08 gears underdash AC Last edited by 19673ontree; 09-27-2008 at 10:17 AM. |
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#35 |
20' Daredevil (Ret)
![]() Join Date: May 2003
Location: Jefferson State
Posts: 13,647
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Re: Points vs HEI 1969 C/10
Interesting discussion... I am old-school, grew up in the Sixties and am perfectly capable of installing and properly adjusting a set of points. You can set them close enough without feeler gauges if necessary, that's what matchbook covers are for! Nothing wrong with points if that's what you like.
But as has been mentioned by several, they will deteriorate and some of them are hard to reach. And HEI has some distinct advantages. If you're concerned about HEI leaving you stranded, toss a spare module in your glove box... In fact, the only time I was stranded by a failed ignition was when I was still on points and the coil failed.
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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#36 |
CAN'T FIX NOTHIN
Join Date: Sep 2006
Location: SOUTHRUST VIRGINIA !!!
Posts: 2,112
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my 67 camaro still has it's original delco coil , the build date on it is nov 1966 ,
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1967 C10 Shortbed Fleetside Small back glass 6 cyl 3spd on the tree 3.08 gears underdash AC |
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#37 |
Registered User
Join Date: Sep 2008
Location: Ogden Utah
Posts: 286
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Re: Points vs HEI 1969 C/10
I am changing my dist to HEI today, but wanted to note that it took my mechanic all of 5 minutes ton install new points/set them. He has some little device (meter) that he hooked up and set them to 28 or 27.9. Said it was close enough. He said the window is 28 to something.. I forget. I do remember it was relatively easy. I let some shade tree mechanic work on it before hand and he had the point way too open ( to the point that if you turn it 1/4 turn the engine would shut off) and he had the timing wayyyy advanced. It's all dialed in, running excellent, and it even looks like I picked up some mpg, but curiiosity is still killing the cat here that makes me want to use the HEI sstem.
Last edited by Slik69; 09-27-2008 at 03:09 PM. |
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#38 |
CAN'T FIX NOTHIN
Join Date: Sep 2006
Location: SOUTHRUST VIRGINIA !!!
Posts: 2,112
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LOL!
the little device was a dwell meter , a small block chevy run's perfect at between 28 to 32 dwell , dwell is the time the point's are set on ,
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1967 C10 Shortbed Fleetside Small back glass 6 cyl 3spd on the tree 3.08 gears underdash AC |
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#39 |
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: Points vs HEI 1969 C/10
3ott is right about the meter.If you stay with the points you're gonna need one.That is unless you want to pay for a simple job every6-12 months.
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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#40 | |
Registered User
Join Date: Sep 2008
Location: Ogden Utah
Posts: 286
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Re: Points vs HEI 1969 C/10
Quote:
That's how much I have dealt with points. Got the HEI installed today.. will update things noticed and ask some questions about the vac. advance not working properly. We basically bypassed it (blocked-off vac adv.) because it did not seem to run properlu when on. It accelerates better than when installed. There seemed to be a delay then the rpm kicked it. I got one cylinder that does not change you pull al plug wire. Has a subtle miss. Looks like the plugs is firing though? |
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#41 |
Registered User
Join Date: Jun 2007
Location: Hanford
Posts: 41
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Re: Points vs HEI 1969 C/10
Yeah its way better my points and condensor wore so tore up my dad said the first thing to do is switch to H.E.I and the swap is pretty easy to.
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[Dont Trasem' Restorm |
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#42 |
Registered User
Join Date: Sep 2008
Location: Ogden Utah
Posts: 286
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Re: Points vs HEI 1969 C/10
Did the swap yesterday and did not notice a difference immediately, but as I drove more I did. Seemed to accelerate faster, smoother. Still runs like crap at idle, but it could judt be a tored dog also. I have exhaust leaks everywhere so it's really hard to tell where the power loss at idle is.
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#43 |
Registered User
Join Date: Dec 1999
Location: Northwest NJ
Posts: 746
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Re: Points vs HEI 1969 C/10
When you do the swap don't forget to run a new wire to supply a full 12 volts. The old cloth covered wire is a resistor wire and only supplies about 9 volts. Chris
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#44 |
Registered User
Join Date: May 2008
Location: Alta Loma, Ca.
Posts: 930
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Re: Points vs HEI 1969 C/10
Ok your block is a 302,327 or 350
Heads are 75 to 86 350/400 heads with 76 cc combustion chambers there are 3 different valve sizes you could have in these. I doubt it is a 302 so that leaves a 327 or 350. Based on the size of the dampener I'd guess at a 327. So if you have a 327 with large chamber heads, that thing should run on the crappiest gas you could put in it! |
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#45 |
Registered User
Join Date: May 2008
Location: Alta Loma, Ca.
Posts: 930
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Re: Points vs HEI 1969 C/10
The tach feed off the HEI comes right off the cap next to the 12 volt wire to energise the distributor. It even says tach on the cap. If you do not have a signal to that wire you need to take the center of the cap off and reveal the coil. Track the wire from the connector to the coil, if it is intact then your trouble is between the distributor and the tach, probably where the wire goes through the firewall. Or maybe the tach took a dump, check it with another tach. Also make sure your tach ground is good.
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#46 |
Registered User
Join Date: Aug 2007
Location: West Hills, California
Posts: 679
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Re: Points vs HEI 1969 C/10
HEI is better. I didn't see anyone mention that HEI has a different timing curve and might ping on high comp motor. HEIs were set up for a smog motors and they have way too much vacuum advance.
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#47 |
Registered User
Join Date: May 2008
Location: Alta Loma, Ca.
Posts: 930
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Re: Points vs HEI 1969 C/10
Oh and for the record I swapped out in an HEI for my point distributor in my 72 and when I had it smogged after that, it reduced the emissions by 40%. An HEI runs 60 thousand volts to the plugs, thats why they run better in the wet! I have a curve kit in mine and it really brings these old engines to life.
Full mechanical advance all in by 3500 rpms. |
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#48 |
Registered User
Join Date: Aug 2007
Location: West Hills, California
Posts: 679
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Re: Points vs HEI 1969 C/10
wow 40%! I think your nox were high due to over advance timing. HEI was probably set closer to stock timing and as a results lower hc and nox reading.
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#49 |
Registered User
Join Date: May 2008
Location: Alta Loma, Ca.
Posts: 930
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Re: Points vs HEI 1969 C/10
No the old point distributor had a bad bearing in it, so I had some spark scatter at 2500.
On my 68 wagon with a stick (it has an air pump) it reduced emissions by 60%The guy said it ran as clean as a 1992 350 and we all know those are FI engines. By the way the engine in my wagon is a 75 4 bolt 350 out of a 1 ton Chevy truck with a cast iron high rise Chevy intake, a quadrajet, an HEI with a curve, a 415/430 lift cam and dual exhausts with Corvair Turbo mufflers. It has a 3.08 12 bolt with a 4 speed and gets 21 mpg on the road at 70mph but still has enough grunt to tow my 16 foot ski boat. |
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#50 | |
Foolish Mortal
Join Date: Mar 2007
Location: Livermore, CA
Posts: 243
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Re: Points vs HEI 1969 C/10
Quote:
1. Can we still do that? Can we still *go* to salvage yards in CA? 2. 75 - 86 Chevy.....Truck? Car? V8? 350 only? I think I would feel a little more comfortable doing that if I knew more specifics as to what model vehicle, etc. |
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