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Search: Posts Made By: NMoffshore
Showing results 1 to 10 of 10
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Forum: General Q & A
04-13-2009, 08:41 AM
Replies: 7
Views: 1,836
Posted By NMoffshore

I did not prime the system. Due to the...

I did not prime the system. Due to the configuration of the motor in the boat it does not lend itself to easy oil priming. I was told it was a good idea to prime the system but not absolutely...
Forum: General Q & A
04-13-2009, 08:02 AM
Replies: 7
Views: 1,836
Posted By NMoffshore

proper flat tappet cam break-in

Greetings everyone,

Ive done quite a bit of research on how to properly break in a hydraulic flat tappet camshaft but as I began the process I noticed there was not any oil coming to the top end. ...
Forum: General Q & A
01-29-2009, 12:54 PM
Replies: 12
Views: 2,917
Posted By NMoffshore

Wow, thats a really impressive power increase. I...

Wow, thats a really impressive power increase. I can only wish for gains like that.

Is a 9:1 compression ratio ideal for this setup? I'm currently at 10.5:1 and haven't thought much about...
Forum: General Q & A
01-29-2009, 09:54 AM
Replies: 12
Views: 2,917
Posted By NMoffshore

This may sound like a stupid question, but is it...

This may sound like a stupid question, but is it possible to have headers that are too large. I have found a set of headers, i belive they are CMI big tube, that would work perfect for my exhaust...
Forum: General Q & A
01-28-2009, 02:58 PM
Replies: 12
Views: 2,917
Posted By NMoffshore

Looks like headers it is. Anyone know if I...

Looks like headers it is.

Anyone know if I will see much of a performance gain using headers and the 561 cam? I have a 25ft boat and could get 58mph @ 5000 above sea level with my current...
Forum: General Q & A
01-28-2009, 10:02 AM
Replies: 12
Views: 2,917
Posted By NMoffshore

I currently have aluminum exhaust manifold +...

I currently have aluminum exhaust manifold + risers. Same style as typical stock systems. I'm looking to upgrade to headers but wasn't sure it was necessary with the 132561 grind. Is there a good...
Forum: General Q & A
01-27-2009, 02:14 PM
Replies: 12
Views: 2,917
Posted By NMoffshore

Which Cam is better?

I'm having trouble selecting a cam for my 454. I've narrowed it down to two cams, both of which I already own.

I have 10.5 : 1 compression, air-gap intake, 750cfm holley, steel block & heads,...
Forum: General Q & A
01-22-2009, 08:06 AM
Replies: 5
Views: 2,947
Posted By NMoffshore

I believe the manifolds are GLM, aluminum with a...

I believe the manifolds are GLM, aluminum with a 3in spacer between the manifold and riser. I'll try and post a pick soon.
Forum: General Q & A
01-21-2009, 09:12 PM
Replies: 5
Views: 2,947
Posted By NMoffshore

454 Exhaust Upgrade???

Greetings.

I'm beginning to rebuild a performance 454 and before selecting the internal engine components I am being advised to upgrade the stock exhaust manifolds first.

Question: My thru...
Forum: General Q & A
01-19-2009, 10:19 PM
Replies: 4
Views: 1,403
Posted By NMoffshore

Cam Selection Help

NEED HELP SELECTING NEW CAM!!

I'm looking to replace a hydraulic lifter (comp cam 11-236-4) with a hydraulic roller. Any ideas???

mercury marine 454
10.5 : 1 compession
performer RPM intake ...
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