What year did GM switch to the new short head bolts?
#6
LS1TECH & Trucks Sponsor
iTrader: (34)
January 2004 was the change-over date.
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800-456-0211 / PM / Facebook
WHIPPLE Superchargers, Procharger, Magnuson, Powerbond Sale, HPTuners packages!, Trickflow, AFR, PRC, CHE Trunion upgrade, $100 7.400" pushrod set, Custom Cam of your choice