Quote:

I have a 426W reverse rotation boat motor it had 516 heads with adjustable rockers - AAQA block real thick walls - heavy sucker



Thank you for the information. Do you happen to have any photos of this engine, and ductile iron rocker arms??

Does anyone else happen to have photos of a 413 industrial engine or 413/426 Marine engine with adjustable ductile iron rockers??

Thanks!