R-134 upgrades - Mark VIII fan - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gchemist · 07-23-2011, 10:16 PM

I bought a Lincoln Mark VIII two speed fan today. This fan is part of a R-134 upgrade. Now I need a 454 fan shroud. New shrouds are available from www.lmctruck.com. The new crossflow condensor will go in at the same time.

Wiring
Black wire = ground
Blue wire = low speed (engine cooling probe control)
Orange/black = high speed (A/C relay switch control)

I'm following this shroud setup.
http://www.off-road.com/trucks-4x4/p...oject1580.html

I'm ditching the dual LS1 fans.

07-23-2011, 10:16 PM	#1
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	R-134 upgrades - Mark VIII fan I bought a Lincoln Mark VIII two speed fan today. This fan is part of a R-134 upgrade. Now I need a 454 fan shroud. New shrouds are available from www.lmctruck.com. The new crossflow condensor will go in at the same time. Wiring Black wire = ground Blue wire = low speed (engine cooling probe control) Orange/black = high speed (A/C relay switch control) I'm following this shroud setup. http://www.off-road.com/trucks-4x4/p...oject1580.html I'm ditching the dual LS1 fans. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos



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