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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Displaced_Txn on April 05, 2014, 08:53:55 pm

Title: Have a few ?s on my sbc400
Post by: Displaced_Txn on April 05, 2014, 08:53:55 pm

Have the sbc 400 in my 77 k5 blazer and there are a few lines blocked off or missing. Just wondering if anyone had a vaccum diagram they could post up or send me. I do know for a fact the vaccum advance isnt hooked up currently and has the three ports for the tvs? on the thermostat housing.
Just one of the small things i need to get done before It can pass inspection.

Title: Re: Have a few ?s on my sbc400
Post by: bd on April 05, 2014, 09:02:18 pm

Look at Section 6E - Engine Emission Controls in the 1977 Service Manual (http://www.73-87chevytrucks.com/techinfo/7387CKMans//Service/ST_330_77_1977_Chevrolet_Light_Truck_Service_Manual.pdf) beginning on page 6E-7 (Pg 651) for the 400 vacuum diagrams.