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Old 10-16-2001, 01:49 PM   #1
hobbsej
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Post 454?

I am considering buying a truck. How do I tell if the engine is a 454? It's in a 90 model crew cab 1 ton. THANKS
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Old 10-16-2001, 06:50 PM   #2
68SWB4x4
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well if its a big block than i think the only big block availble in 90 was the 454.....

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Old 10-17-2001, 10:24 AM   #3
gchemist
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I agree. Its probably a 454 if it's not diesel. Find the RPO codes in the glove box (?) The codes can be found on websites. I think the address to one is www.mortec.com

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Old 10-17-2001, 11:44 AM   #4
Z16
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If you are looking for an easy visual way, look at the exhaust manifolds. Each port will be seperate. On a 350, the two center ports are siamesed together. I'm sure you can tell by the sound and smell if it's a diesel
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