speedmaster CNC 408 what cam

-
Jones recommended a 254/260 @.050 - 591¨/567¨ on 110lsa
 
Solid or hyd
Does Jones have more than his best in class low compression Hyd special now?
 
dogbreath said:
Jones recommended a 254/260 @.050 - 591¨/567¨ on 110lsa
Click to expand...

That's a typical Jones layout, some call hemi grind because the exhaust is less lift than the intake .. ' more duration to make it up'
I was thinking how much I like the herbert cam i have .....and found a Howard's roller that's just a hair smaller than it...
The .585 lift 277/[email protected] 108 lsa int center 104.
Mechanical Roller Camshaft; 1964 - 2003 Chrysler 273, 340, 360 2800 to 6200 Howards Cams 711313-08 | Howards Cams
 
Last edited:
Jones is using a different lobe series
older vendors used the same series of lobes for both intake and exhaust hence the longer exhaust has more lift
Jones get's it right for both
On one of my Jones cams we used a .904 on the intake and a universal on the exhaust- lift came out about the same with more duration on the exhaust
with todays better exhaust ports you do Not want the old school 10 degrees more on the exhaust
 
MOPAROFFICIAL said:
found a Howard's roller that's just a hair smaller than it...
The .585 lift 277/[email protected] 108 lsa int center 104.
Mechanical Roller Camshaft; 1964 - 2003 Chrysler 273, 340, 360 2800 to 6200 Howards Cams 711313-08 | Howards Cams
Click to expand...
It will out torque the 254 & I’d bet very similar HP.
Wyrmrider said:
with todays better exhaust ports you do Not want the old school 10 degrees more on the exhaust
Click to expand...
Only on stock heads, no or little porting.
LOL
 
Wyrmrider said:
Jones is using a different lobe series
older vendors used the same series of lobes for both intake and exhaust hence the longer exhaust has more lift
Jones get's it right for both
On one of my Jones cams we used a .904 on the intake and a universal on the exhaust- lift came out about the same with more duration on the exhaust
with todays better exhaust ports you do Not want the old school 10 degrees more on the exhaust
Click to expand...
Depends on the exhaust system .lol
 
MOPAROFFICIAL said:
That's a typical Jones layout, some call hemi grind because the exhaust is less lift than the intake .. ' more duration to make it up'
I was thinking how much I like the herbert cam i have .....and found a Howard's roller that's just a hair smaller than it...
The .585 lift 277/[email protected] 108 lsa int center 104.
Mechanical Roller Camshaft; 1964 - 2003 Chrysler 273, 340, 360 2800 to 6200 Howards Cams 711313-08 | Howards Cams
Click to expand...
Then pick up a crane coated steel gear, morell rollers , some comp or k motion springs and get to tire fryin
 
dogbreath said:
Jones recommended a 254/260 @.050 - 591¨/567¨ on 110lsa
Click to expand...
How long did it take to get a recommendation? Sent in the form with my specs and anxiously waiting to hear back.
 
Jones was at the indy trade show , hence the backlog delay
 
You must log in or register to reply here.
-

Back
Top