Hot Rod Forum : Hotrodders Bulletin Board

Hot Rod Forum : Hotrodders Bulletin Board (
-   Engine (
-   -   351 marine block (

nitrous_69stang 02-07-2005 02:06 PM

351 marine block
What are the differences between a 351w marine block and a 351w auto block? I know some of the marine engines run opposite to normal rotation. But when stripped down to nothing but the block what are the differences between the two?

machine shop tom 02-07-2005 02:45 PM

There are no differences between the marine and landlubber 351 blocks that I have seen, besides the cost.


farna 02-07-2005 03:50 PM

You'll have to check the 351W block, but *some* marine blocks are cast with thicker cylinder walls and internal webs. This is to increase durability under hotter operating conditions. Marine engines have to be certified as marine also, that might be the extra cost. I always thought the certification was mainly for things like the carb though. Heavy duty truck blocks and big blocks are often used because they have thicker walls.

All times are GMT -6. The time now is 12:15 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.