1965 Chevy Corvette HEI conversion

1965 CHEVROLET CORVETTE
20,000 MILES • V8 • 2WD • AUTOMATIC
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STINKRAY
  • MEMBER
  • 1 POST
I converted my '65 corvette 327 from points to HEI ignition. The original spark plugs were AC45 and gapped at .035. What is the proper heat range I should use and what should the gap be due to the higher amount of energy from the HEI distributor?
Aug 16, 2010 at 5:34 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
depending on the TYPE of iginition system you put in your heat range and gap should be ok. If you get premature plug wear then gap them at .040
Sep 16, 2010 at 12:23 PM
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