Help with Cam Choice PLEASE!!!!
#1
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Help with Cam Choice PLEASE!!!!
Hi All,
I am building my boat motor and need some help.
First off the boat is a 1978 21' Eliminator Mini-Daycruiser V-Drive. I live in Colorado and will be using the boat at 4100' or above in elavation. Motor specs are as follows,
454 bored .30 over
10.5 to 1 compression
Forged SRP pistons 212135
Large oval port heads GM 3983820
113cc chambers, 255cc intake runners, 114cc exaust runners
Forged GM LS6 crank
Eagle I-beam rods
Edelbrock RPM Air-Gap Intake
Holley 750 Double Pumper
MSD Pro Billet Dist. w/6AL brain
Crane Roller Rockers
All hardware is ARP
I am looking for 500+ horses with out the cost of having to go full roller valve train. Any help is greatly appreciated. Any other advise would also be helpful. Thanks in advance.
I am building my boat motor and need some help.
First off the boat is a 1978 21' Eliminator Mini-Daycruiser V-Drive. I live in Colorado and will be using the boat at 4100' or above in elavation. Motor specs are as follows,
454 bored .30 over
10.5 to 1 compression
Forged SRP pistons 212135
Large oval port heads GM 3983820
113cc chambers, 255cc intake runners, 114cc exaust runners
Forged GM LS6 crank
Eagle I-beam rods
Edelbrock RPM Air-Gap Intake
Holley 750 Double Pumper
MSD Pro Billet Dist. w/6AL brain
Crane Roller Rockers
All hardware is ARP
I am looking for 500+ horses with out the cost of having to go full roller valve train. Any help is greatly appreciated. Any other advise would also be helpful. Thanks in advance.
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Re: Help with Cam Choice PLEASE!!!!
Exaust has not been decided on yet, but will most likely be wet due to more of a family use and closed engine compartment. I was thinking of going with Revolution or something along those lines.
#5
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Re: Help with Cam Choice PLEASE!!!!
Originally Posted by OldEliminator
Hi All,
I am building my boat motor and need some help.
First off the boat is a 1978 21' Eliminator Mini-Daycruiser V-Drive. I live in Colorado and will be using the boat at 4100' or above in elavation. Motor specs are as follows,
454 bored .30 over
10.5 to 1 compression
Forged SRP pistons 212135
Large oval port heads GM 3983820
113cc chambers, 255cc intake runners, 114cc exaust runners
Forged GM LS6 crank
Eagle I-beam rods
Edelbrock RPM Air-Gap Intake
Holley 750 Double Pumper
MSD Pro Billet Dist. w/6AL brain
Crane Roller Rockers
All hardware is ARP
I am looking for 500+ horses with out the cost of having to go full roller valve train. Any help is greatly appreciated. Any other advise would also be helpful. Thanks in advance.
I am building my boat motor and need some help.
First off the boat is a 1978 21' Eliminator Mini-Daycruiser V-Drive. I live in Colorado and will be using the boat at 4100' or above in elavation. Motor specs are as follows,
454 bored .30 over
10.5 to 1 compression
Forged SRP pistons 212135
Large oval port heads GM 3983820
113cc chambers, 255cc intake runners, 114cc exaust runners
Forged GM LS6 crank
Eagle I-beam rods
Edelbrock RPM Air-Gap Intake
Holley 750 Double Pumper
MSD Pro Billet Dist. w/6AL brain
Crane Roller Rockers
All hardware is ARP
I am looking for 500+ horses with out the cost of having to go full roller valve train. Any help is greatly appreciated. Any other advise would also be helpful. Thanks in advance.
#6
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Re: Help with Cam Choice PLEASE!!!!
With your altitude, HP desire and block size...is there money in the budget for a 6:71? You could then use a flat tappet cam and either log manifolds or overtransom headers. With a NA engine, those headers will need to be a very efficient design.
#9
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Re: Help with Cam Choice PLEASE!!!!
JC Performance just built a 454 for Stormrider with the solid flat tappet cam he described to you.
The engine dyno'd at like 570HP @ 5800.
You will need long risers with wet exhaust to run a cam that big though...
Good Luck!
The engine dyno'd at like 570HP @ 5800.
You will need long risers with wet exhaust to run a cam that big though...
Good Luck!
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