Thread: Spark Plugs for Vortec?
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11-30-2010 01:11 PM #1
Spark Plugs for Vortec?
Building up a 383 with GMPP Vortec heads #12558060. Heads are designed for use on SBC 1958 and later. Block from a '71.
Static Compression Ratio = 8.6
Dynamic Compression Ratio = 7.4
180 degree thermostat
4 Speed manual
Daily Driver
Not high RPM, well maybe once in while
Want to use 87 octane
Probably start a little cool on the plug and get hotter as I see effect on plugs.
Anyone have ideas on particular plug part #'s I should start with using these particular heads and application? I hate to admit it but I'm clueless!
Thanks,
DoubleSun
Very impressed with the trim especially because Stainless is a PITA. Thanks for your post.
55 Wagon Progress