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So I have gave you the serial number and Id tag to the parts engine. The engine on the boat has the same block casting number 1401544. But the serial number above the timing chain cover is 10617alb.There is no id tag on this engine.I hope these 2 are close.also the head casting number is...

I don't know how to post a link to the forum. It's comp cams extreme marine product #cl11-232-3 Oval port heads.i posted the head casting number in the beginning of post.Also pic of specs are above.

Is #15 manual a 1 or 2 book set?I'm prob gonna pay for a download.

14015445 is block number

I got a marine cam from comp cams cL11-232-3.Flat tappet lifters.it does says replace valve springs.do you know which valve springs from comp cams to get and can I use the original caps and keepers or do I need those too?

I have a gen 4 mercruiser 454. I need to know which service manual to use.Some say #16 but that is gen 5 and up I think. I'm having to replace cam and top end parts and gaskets.So I need to know about valve adjustment procedure and timing procedures and steps to go about it. Engine block...

I have a mercruiser 454 gen 4 I think. Engine tag serial#b830792 Block cast #1401544 Head cast#14092360 I'm changing the cam and need to know about valve adjustment and engine timing and so much more.Some say #16 is the right manual but it's says gen 5 and up. Which manual do I get or where can...