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68C15 · 04-13-2008, 09:57 PM

keep in mind the 94 and older CPI (aluminum upper intake) engines were called vortec as well. in 95 they went to the CSPI (plastic upper) which has a different throttle body.
the CSPI throttle body should work on the 04 as they are the same engine. FWIW a 5.0 and 5.7 take the same as well.
while you're at it cut off the baffle, big difference in response.

04-13-2008, 09:57 PM	#2
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: 94 - up s 10 parts interchange ? keep in mind the 94 and older CPI (aluminum upper intake) engines were called vortec as well. in 95 they went to the CSPI (plastic upper) which has a different throttle body. the CSPI throttle body should work on the 04 as they are the same engine. FWIW a 5.0 and 5.7 take the same as well. while you're at it cut off the baffle, big difference in response.