Is this cam any good?
#1
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Is this cam any good?
Hi guys, in the middle of freshening up my 454 Alpha engine and wondered if this cam would be any good. Not looking for major performance, but a little would be nice!
Crane Cams Commander Camshaft
CCH-306-2
134571
Application
1967-1995 Chevrolet V8
396-402-427-454 ci
Hydraulic Lifters
Duration @ .050" Int/Exh: 246/254
Degrees Advertised Duration Int/Exh: 306/314
Degree Lobe Seperation: 112
Open/Close @ .050" Cam Lift Int/Exh: 16 64 / 50 10
Lash Hot Int/Exh: .000/.000
Gross Lift Int/Exh: .571/.585
Rough idle, performance usage, marine performance
Good upper RPM HP, 4000-4400 cruise RPM.
10.5 to 12.0 compression ratio advised.
Auto with 3500+ converter
Crane Cams Commander Camshaft
CCH-306-2
134571
Application
1967-1995 Chevrolet V8
396-402-427-454 ci
Hydraulic Lifters
Duration @ .050" Int/Exh: 246/254
Degrees Advertised Duration Int/Exh: 306/314
Degree Lobe Seperation: 112
Open/Close @ .050" Cam Lift Int/Exh: 16 64 / 50 10
Lash Hot Int/Exh: .000/.000
Gross Lift Int/Exh: .571/.585
Rough idle, performance usage, marine performance
Good upper RPM HP, 4000-4400 cruise RPM.
10.5 to 12.0 compression ratio advised.
Auto with 3500+ converter
#3
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fixx
+1 too much duration,,if your looking for off the shelf cam for a 454 my customers and i have been vary happy with the isky 270/280 mega hyd cam..you can use it with stock manifolds and has a nice loppe idle but not to bad,,has real good midrange acceleration..
http://www.flatlanderracing.com/iskycamsmarine.html
http://www.flatlanderracing.com/iskycamsmarine.html
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Fixx
i dont know the exact hp but in a 23' checkmate the boat ran 76 on the gps @ 5200 rpm's..same cam in a hallett with port work to the heads but through a volvo drive the boat picked up 4 mph,,in a 23'? mach one the boat went from 62 mph to 67 mph..it all depends on your set up in the engine..it has a nice idle and a snappy throttle response and pulls hard in every motor i put it in..
#7
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You can make 420hp with the cam I posted. Mill the heads .030, Holley 800 carb, Air gap intake and aftermarket exhaust.
I gave these specs to somebody a while ago and they dyno'd it at 425HP at 5000rpms. I used to spin mine to 5400rpms so it was probably closer to 435hp.
The cam is very close to the Merc 454/420hp specs.
I gave these specs to somebody a while ago and they dyno'd it at 425HP at 5000rpms. I used to spin mine to 5400rpms so it was probably closer to 435hp.
The cam is very close to the Merc 454/420hp specs.
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+1 too much duration,,if your looking for off the shelf cam for a 454 my customers and i have been vary happy with the isky 270/280 mega hyd cam..you can use it with stock manifolds and has a nice loppe idle but not to bad,,has real good midrange acceleration..
http://www.flatlanderracing.com/iskycamsmarine.html
http://www.flatlanderracing.com/iskycamsmarine.html
Thanks
Jason