Do you need the new PCM/memcal if you install high ratio roller rockers and lifters to suit ECOTEC AND L67 V6? Siya March 01, 2024 09:28 No you don't. Your current PCM should be able to handle the upgrade. Related articles Can I use Ultra high ratio roller rockers (1.98:1) to suit ECOTEC AND L67 V6 in a VY V6? What does this mean that the RACE 5% OVERDRIVE HARMONIC BALANCER TO SUIT HOLDEN ECOTEC L36 L67 S/C 3.8L V6 will need to be mirror balanced to the current Ecotec balancer for correct installation? Do you have Rockers covers to suit Buick Comments 0 comments Please sign in to leave a comment.
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