Earl's Performance Earl's Straight Transmission Adapter -6 Male to 1/4-18 NPSM Male 940006ERL 1978-buick-lesabre-esi4004381 it delivers a moderate exterior

it delivers a moderate exterior tone with moderate interior sound level that is suited to the enthusiast who wants their performance to be heard

+36% Mass Air Flow gain vs stock higher sustained power and better fuel economy

Matched with OEM style replacement rotors

0L w/ VIN G/T/U/H (8th Digit)

Earl's Performance Earl's Straight Transmission Adapter -6 Male to 1/4-18 NPSM Male 940006ERL 1978-buick-lesabre-esi4004381 it delivers a moderate exteriorThere are always clearance challenges when doing an engineswap. One of these is routing the transmission cooler linesoff the side of the transmission while cleaning the trans tunnel. Earl's makes this easier with their line adapters. Integrating into the GM transmission and adapting to ANlines allows additional clearance and freedom that the originalhard lines cannot. Adapters are available for the popular GM Transmissions4L60E, 4L80E, TH350, TH400,