Off the shelf cam options for marine engines

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02-24-2016 | 10:45 PM

#641

Panther

Frank's Marine Service

Joined: Sep 2002

Posts: 11,959

Likes: 142

From: Elkton, MD

Quote:

Originally Posted by SB

Almost the end of page 64 and we are now on flat tappets. Did we go so far we hit a time warp of 12-15 yrs ?

Pretty soon we'll all be running Peanut Port heads!

02-25-2016 | 05:12 AM

#642

vintage chromoly

Gold Member

Joined: Sep 2011

Posts: 2,643

Likes: 18

From: cleveland ohio

Quote:

Originally Posted by mike tkach

i don,t think it will make 450.what was the factory hp rating?

365, but we all know those "ratings" from the big three in that era were all over the map.
Really, it's not a race car. I just can't leave anything alone so I started foolng with it and wound up with ported intake, heads and a solid cam.

It was good to go through it as we found a few suspect assembly things we fixed. (Junky//bend oil pump pickup, distributor bushing in the block spun, # 2 cam bearing was gone)

Last edited by vintage chromoly; 02-25-2016 at 05:19 AM.

02-25-2016 | 06:34 AM

#643

sutphen 30

Registered

Joined: Jan 2006

Posts: 3,598

Likes: 1,168

From: taxachusetts

Quote:

Originally Posted by Panther

Pretty soon we'll all be running Peanut Port heads!

w/ either 2 barrel carbs or tbi,,gotta get that port velocity super super sonic,,ludicrous speed.scotty,I need more speed,,Captain,I've given her all sheee's got,she can't takes anymore.

02-25-2016 | 06:38 AM

#644

sutphen 30

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Joined: Jan 2006

Posts: 3,598

Likes: 1,168

From: taxachusetts

Quote:

Originally Posted by vintage chromoly

9.25 to 1.
906 Chrysler heads

This is a numbers matching engine for a 39,000 original miles car, so the idea was to keep it simple, cost effective and reliable. It's an ice cream cone getter.

I have a nice engine package for the big block chryslers.will see if I can find the paperwork.also did a nice stroker sb chry for my brothers AAR cuda.

02-25-2016 | 07:46 AM

#645

Mr Maine

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Joined: May 2012

Posts: 1,465

Likes: 9

Quote:

Originally Posted by sutphen 30

w/ either 2 barrel carbs or tbi,,gotta get that port velocity super super sonic,,ludicrous speed.scotty,I need more speed,,Captain,I've given her all sheee's got,she can't takes anymore.

Speaking of this, how high do port velocities get? A 2x2 inch port that flows 400cfm would have a velocity of 240 ft/sec. What if with a blower you sped this up to break the sound barrier? Would the engine just sonic "BOOM"?