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I recently purchased a 1970 GTO w/455 engine w/400auto trans
all #'s matching.Motor was rebuilt recently.
what type of motor oil do you recommend?
I also own a 69 427 Camaro and use 20/50w with the zinc,etc.
do I need that in the 455?
 

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I recently purchased a 1970 GTO w/455 engine w/400auto trans
all #'s matching.Motor was rebuilt recently.
what type of motor oil do you recommend?
I also own a 69 427 Camaro and use 20/50w with the zinc,etc.
do I need that in the 455?
You're going to get various opinions on oils from Brad Penn to Shell Rotella. I use Valvoline VR1 racing oil 10w40 with high zinc NON-synthetic. (400) My engine is all original if your rebuild accepts synthetic then you have a choice. I get mine off of Amazon (best price I can find) and have it delivered. I know those with 455's and they use 30 or 40W with no issues.


 
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