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#26 |
Proprietor of Dale's Corner
![]() Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,083
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Re: Vin codes ?????????
Tall blocks were a 366cid and 427cid..
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"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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#27 |
Registered User
Join Date: Aug 2017
Location: Auburn, WA.
Posts: 21
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Re: Vin codes ?????????
Thank you for the input. Helps to learn,
Grunt |
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#28 |
Who Changed This?
![]() Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,373
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Re: Vin codes ?????????
I'd recommend backing the timing off until you find the source of the ping. You're going to trash pistons and rod bearings, otherwise. My truck is set to the factory spec initial timing, and only pings a little if I'm pulling a hill with my 26 foot travel trailer in the heat (and gets up to about 230º). I have an HEI; maybe the MSD ignition is doing some early advance that doesn't show up?
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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#29 |
Registered User
Join Date: Aug 2017
Location: Auburn, WA.
Posts: 21
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Re: Vin codes ?????????
Thank you, Ill try that.
Grunt |
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#30 |
Senior Member
![]() Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,946
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Re: Vin codes ?????????
X2 on the timing adjustment. Why spend money on something that's not broken. Drop your initial down to 8-10 and see how it does.
How's the plugs look? Running lean under load will also make it ping, especially if you have high compression. What pistons are in it? Do a compression test and post up the numbers. Do some trouble shooting before you just throw parts at it. These old carbed engines are pretty simple. You may be a jet change away from perfection.
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ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ |
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#31 | |
Registered User
Join Date: Aug 2017
Location: Auburn, WA.
Posts: 21
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Re: Vin codes ?????????
Quote:
So glad to finaly get some where with this engine. I WANT TO THANK ALL YOU GUYS FOR YOUR GREAT INPUT. The old Grunt in WA. State. "" WELL THAT DID NOT LAST LONG, AS SOON AS THE MOTOR GOT WARMED UP ., PING, PING PING !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Last edited by grunt67; 09-01-2017 at 10:08 PM. |
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