317 heads on stock 5.3?
Jan 5, 2016 | 08:16 AM
#1
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317 heads on stock 5.3?
I have a 5.3 99 NBS and I have a 228R can ready to go in. My friend just offered me some 317 heads for 100$ idk if they'll work good because I'm planning on doing a 100 shot. So would you guys recommend me getting those 317 heads or just stick to mine?
Jan 5, 2016 | 08:35 AM
#2
Good heads, but the chambers are WAYYY too large and your 5.3 would be a turd my friend, especially with a huge cam for a 5.3 like a 228r... You could mill them but thats going to bring in custom pushrods etc... i would probably leave the 5.3 heads. Any other head not milled you will lose compression unfortunately.
Jan 5, 2016 | 05:33 PM
#3
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Good heads, but the chambers are WAYYY too large and your 5.3 would be a turd my friend, especially with a huge cam for a 5.3 like a 228r... You could mill them but thats going to bring in custom pushrods etc... i would probably leave the 5.3 heads. Any other head not milled you will lose compression unfortunately.
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