The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 1985 GMC 4x4 LS Motor Swap, tons of pics!

83GMCK2500 · 05-23-2013, 02:10 PM

Do you still have the vacuum reserve canisters under the hood? They look like kinda little black Death Stars, they should help the HVAC control problem and maybe trans shifts. The brake booster should also have a check valve inline and it takes a good sized hose, maybe post a pic of your setup/routing.

05-23-2013, 02:10 PM	#61
83GMCK2500 Registered User Join Date: Sep 2009 Location: Beaverton, OR from WA State Posts: 1,515	Re: 1985 GMC 4x4 LS Motor Swap, tons of pics! Do you still have the vacuum reserve canisters under the hood? They look like kinda little black Death Stars, they should help the HVAC control problem and maybe trans shifts. The brake booster should also have a check valve inline and it takes a good sized hose, maybe post a pic of your setup/routing. __________________ Devin 1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt 1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050 1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350 My Introduction with my '83s History New Daily, the '96