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Forum: General Q & A

12-12-2009, 09:44 PM

Replies: 19

No compression in #8 cylinder - 454 Magnum

Views: 20,660

Posted By Mike Phillips

***Update*** One of my mechanic friends...

***Update***

One of my mechanic friends said he was told by that there were some rocker arms Chevy put out that were defective and/or weak and that breaking like mind did is a known problem. I...

Forum: General Q & A

11-12-2009, 10:12 PM

Replies: 19

No compression in #8 cylinder - 454 Magnum

Views: 20,660

Posted By Mike Phillips

***Update*** First, I was recommended to a...

***Update***

First, I was recommended to a local machine shop that works on a lot of marine engines. I explained what happened to the owner of the shop and showed him the broken rocker arms and...

Forum: General Q & A

11-11-2009, 09:23 PM

Replies: 19

No compression in #8 cylinder - 454 Magnum

Views: 20,660

Posted By Mike Phillips

I removed the passenger side valve cover and...

I removed the passenger side valve cover and found the problem... now I'm looking for a great set of roller rockers as well as the root cause of the problem. The local NAPA store has a brand new one...

Forum: General Q & A

11-11-2009, 06:19 AM

Replies: 19

No compression in #8 cylinder - 454 Magnum

Views: 20,660

Posted By Mike Phillips

Stock Chevy rocker arms. Leak down test is out...

Stock Chevy rocker arms. Leak down test is out of my ability to do right now.

Checked and noted. Will be interesting to see what things look like under the valve cover.

Don't mind...

Forum: General Q & A

11-10-2009, 09:21 PM

Replies: 19

No compression in #8 cylinder - 454 Magnum

Views: 20,660

Posted By Mike Phillips

When it was running right it was a true beast. ...

When it was running right it was a true beast. Just way too much fun!

It will turn the 35" Boggers over without hesitation. Reminds me of driving the Drag boat, point it straight where you want...

Forum: General Q & A

11-10-2009, 09:18 PM

Replies: 19

No compression in #8 cylinder - 454 Magnum

Views: 20,660

Posted By Mike Phillips

Check. Will remove it tomorrow and take some...

Check. Will remove it tomorrow and take some pictures if there's anything to seel

Sorry about that, just trying to find some knowledgeable guys when it comes to Gen VI Roller Cam 454...

Forum: General Q & A

11-10-2009, 07:37 PM

Replies: 19

No compression in #8 cylinder - 454 Magnum

Views: 20,660

Posted By Mike Phillips

No compression in #8 cylinder - 454 Magnum

No compression in #8 cylinder - 454 Magnum

Hi all,

First post here,

I put a 454 Magnum Marine engine in a 1975 GMC Jimmy in June. Bought from a friend that had it rebuilt for a boat then...

Showing results 1 to 7 of 7