Offshoreonly.com - Differences between mark 4 and gen V orVI

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djtalon

05-04-2006 02:00 PM

Differences between mark 4 and gen V orVI

can anyone tell me the differences? oil pan? distributor? Heads.....

jpclear

05-04-2006 06:53 PM

Re: Differences between mark 4 and gen V orVI

There are lots of differences too numerous to type in here. But if you can get a copy of Dennis Moore's "BIG-BLOCK CHEVY Marine Performance" book it will tell you everything you need to know in that area, and more. --- Jer

deboatmon

05-05-2006 06:02 PM

Re: Differences between mark 4 and gen V orVI

There are many ways to tell the difference, but the easy way to tell immediately is that the Gen IV has a fuel pump boss on the right front of the block. The easy look between Gen V and Gen VI is that the timing cover for Gen VI is cast and the Gen V is stamped steel.

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