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Username Post: 1985 Silverado k30 w/454 eng a/c type?        (Topic#351534)
Posts: 21

Reg: 09-07-04
06-12-18 05:05 AM - Post#2736685    

I'm rebuilding the entire a/c system on my 85 silv K30 454 engine. Does it use the a-6 long or the r-4 radial compressor? I cannot find info other than it could come either way? I have all the compressor brackets for the A-6 and I see that a new style aluminum version is out, is it any good? the older style I had nothing but troubles with. I have R12 and 134a..
thanks for your time

Senior Chevytalk Moderator
Posts: 24323
Loc: Austin, TX 78748
Reg: 05-09-00
06-16-18 01:37 PM - Post#2737186    
    In response to cw41

Can you fit a Sanden SD7HD? It’s a bolt on with brackets. I replaced an R4 with an SD7HD. R134 uses a cross flow condenser. R12 uses tubes that wrap around. Match the components.

'95 Jimmy SLT (Bought @131,814)
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS Ret. @236651 miles

Edited by gchemist on 06-16-18 01:38 PM. Reason for edit: No reason given.

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