socalboatr
Member
I have a 23' 1971 Chris Craft. The boat originally was equipped with a 307QLV engine and VP 270 outdrive. A previous owner replaced the 307 with a 350 (casting 3970010) and kept the VP 270. When I acquired the boat the engine did not run.
During the rebuild, the machine shop reported one of the 3973487 heads is cracked and unrepairable. It appears replacement "487" heads are available. I know boats but not engines. Can anyone tell me if I should replace the "487" heads with similar or should I take this opportunity to upgrade to a "better" (as in more efficient) set of heads, without busting the bank. Thank you in advance for your assistance.
During the rebuild, the machine shop reported one of the 3973487 heads is cracked and unrepairable. It appears replacement "487" heads are available. I know boats but not engines. Can anyone tell me if I should replace the "487" heads with similar or should I take this opportunity to upgrade to a "better" (as in more efficient) set of heads, without busting the bank. Thank you in advance for your assistance.