S-10 Forum banner

1 - 5 of 5 Posts

·
Registered
Joined
·
18 Posts
Discussion Starter #1
Hey im thinkin about goin to look at a Jimmy for sale. What are the things to look for in teh serial num to tell if its a Vortec CPI or a TBI?
thanks
 

·
Long Bed Member
Joined
·
3,065 Posts
alrighty the 8th digit into the vin will either be
Z: tbi
or
W: cpi
but even so the visual difference is huge the tbi will look almost like a carb. and have a round air cleaner, the cpi or votec motor will have a large upper intake that doesnt resemble the tbi at all and it should say "vortec" on the top of it , hope that helps
 

·
Long Bed Member
Joined
·
3,065 Posts
yeah all the cpi's should be vortecs and i dont believe they made them till '93 possibly late '92.
 

·
Registered
Joined
·
132 Posts
CPI

'92-95
 
1 - 5 of 5 Posts
Top