460 Block Heaters
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Elder User
Joined: Feb 2006
Posts: 765
Likes: 1
From: Eastern Ohio
460 Block Heaters
I have an 84 350 with a 460. I was wondering if there are any problems with the useing the block heaters. I know early 6.9s would crack around the heater just wondered 460s had the same problems.
Cargo Master
Joined: Dec 2003
Posts: 2,735
Likes: 38
From: Sunny Florida
I've never heard of a 460 cracking from one but then again one never knows. My 351M has had the block heater in it at one time and it came from MI so I am sure it was used and the block is fine. It was to rusty to reuse so I installed a normal freeze plug. The 460 block is a much stronger block than the 351M/400 blocks.
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