Circulation pump 5.7 L

[Stetson]

I have a 2000 Chaparral 5.7 L, engine serial number 0L657145, Bravo OD (with belt driven pump) the circulation pump on the engine needs replacing as for the belt. What is the correct pump and belt for this engine and dose it have a composite timing chain cover? I'm also having massive pinging sound above 1300 rpm's. If I determine that the timing chain is stretched what chain and gear would I need?

 

[Bt Doctur]

Highly doubtful the timing chain is making the noise. You have a GM engine, GM parts will work.
Timing cover is composite, circ pump 8503991, 46-8M0113734

 

[Scott Danforth]

any GM SBC marine water pump

the pining is your fuel system. you cant put enough hours on a boat to stretch the chain. that would be well over 10,000 hours on the boat

 

[achris]

That's a serpentine belt. Take it off and take it to any auto shop and buy a Gates belt the same, and you won't be paying the 'marine' tax. (should be 2471mm for standard cooled Bravo) this one...

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