FE Power Forums

FE Power Forums => FE Technical Forum => Topic started by: Qikbbstang on August 21, 2015, 09:16:28 PM

Title: I think I scored some iron spacers from my marine 427's intake. To me it makes
Post by: Qikbbstang on August 21, 2015, 09:16:28 PM

sense to be able to use all uniform length bolts on the intake manifold but also to have uniform tensioning of all bolts through heat cycles due to all bolts being equal length.
   Never noticed the spacers on any other OEM FE intake manifolds.

Title: Re: I think I scored some iron spacers from my marine 427's intake. To me it makes
Post by: Drew Pojedinec on August 21, 2015, 09:32:18 PM

Considering the amount of contraction/expansion I think it would be irrelevant given the fastener torque.

Title: Re: I think I scored some iron spacers from my marine 427's intake. To me it makes
Post by: chris401 on August 21, 2015, 09:54:31 PM

If I am on the same page: I have seen the rear intake bolts both ways. Was that a year specific change or different factory instalation?

Title: Re: I think I scored some iron spacers from my marine 427's intake. To me it makes
Post by: 427Fastback on August 22, 2015, 12:12:16 AM

I think its a moot point.I have seen lots of FE intakes (not marine) with spacers on the last two bolts.

Title: Re: I think I scored some iron spacers from my marine 427's intake. To me it makes
Post by: Barry_R on August 22, 2015, 07:30:20 AM

Seen it both ways often.
The "equal loading" thing is pretty nominal on an intake bolt.
A solution looking for a problem....

Title: Re: I think I scored some iron spacers from my marine 427's intake. To me it makes
Post by: Drew Pojedinec on August 22, 2015, 08:16:09 AM

Kinda my point Barry.  If it was an issue, FE's would be blowing head gaskets all the time due to mismatched head bolts.