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  1. M

    Mismatched heads?

    I got the engine for free I mainly want to use it to get the truck moving while I build a better engine as it's been sitting for the better part of 20 years my only concern is if I'll have issues with reliability with the heads not matching
  2. M

    Mismatched heads?

    I'll have to get the casting numbers when I go to the shop this weekend I was under the impression the last 3 were all you needed to I'd
  3. M

    Mismatched heads?

    Hey guys so I recently got a 305 from a guy planning on using the 416 heads on my c10. However when I got the engine home and started to tear it down I found one head is a 416 the other is a 450so I scraped the idea of using them. My question is will this 305 run decent for another project I...

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