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Old 07-15-2012, 02:38 PM   #1
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Member Since: Jul 2012
Default Detailed 1969 427/390hp engine specs?

I am new to the forum and have a 1969 ISO Grifo 7L with the 427/390hp engine (LM suffix). For the engine rebuild I am looking for detailed part#/ tech specs for
- the original camshaft
- the 7029215 Quadrajet

I am also looking for pictures of the engines, since many details (fuel filter, air cleaner, crankcase ventilation parts, engine colors etc) are no longer correct on our 43-year-old ISO cars.

This is a (too) big request, but any partial answers will be much appreciated.

For PMs use juergenmwilms@googlemail.com.

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Old 07-15-2012, 06:58 PM   #2
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Member Since: Feb 2012

427/390 "L36" cam is 3883986. Cam timing is: Intake 20 BTDC-68 ABDC/Exhaust 74 BBDC-20 ATDC. Lift is 0.461/0.480. Duration at 0.008" lift is 268/274. All info from "How to Hotrod Big Block Chevys" book.
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Old 07-15-2012, 07:14 PM   #3
Alan 71
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Member Since: Sep 2006
Location: Westminster Maryland

Hi J,
2 books that may help you with pictures and info about your 427/390 are:
'Vette Vues Fact Book of the 68-72 StingRay' by M.F. Dobbins.
'1969 StingRay GuideBook' by Rick Bizzoco.
They are both available from various Corvette parts venders.
Good Luck!
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Old 07-15-2012, 07:14 PM
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427/390hp, engine specs, quadrajet 7029215

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