|
Truck 440 cam selection help...
#508774
10/27/09 01:40 PM
10/27/09 01:40 PM
|
Joined: Aug 2003
Posts: 4,481
Mesa, AZ
Pat_Whalen
OP
super gas
|
OP
super gas
Joined: Aug 2003
Posts: 4,481
Mesa, AZ
|
Looking into the summit cam/lifters kit. The engine in question is a 1978 440, standard bore, stock pistons, untouched 452 heads, cast iron manifolds. Engine is going in an 80 ramcharger, 35" tires, unsure of axle ratios at this point, 727/205 combination. I would like a fairly low power band to get this beast moving, I'd like it to "sound" like it's got a hotter cam in it, and I'd like to not sacrifice drivability or vacuum. I saw summit lists two camshaft kits: The SUM-K6401 which is 282/292, .465"/.468" The SUM-K6400 which is 272/282, .442"/.465" As I understand it, the lower duration brings the power curve down a bit in the RPM range, but obviously at the sacrifice of lift. I would also prefer not to have to change to different springs, unless not doing so would leave something on the table. The truck will be daily driven, mostly road but the occassional weekend jaunt through the rocks. Appreciate the help! Cheers 
|
|
|
Re: Truck 440 cam selection help...
[Re: Pat_Whalen]
#508775
10/27/09 01:46 PM
10/27/09 01:46 PM
|
Joined: Apr 2007
Posts: 1,261
ILL
mark7171
pro stock
|
pro stock
Joined: Apr 2007
Posts: 1,261
ILL
|
The smaller summit cam with stock gears. The rule of the game says to match springs, cam, compression, intake,and carb for the engines' demand .
Use it with a Weiand action + (super low rise ribbed) and a 750 edelbrock AFB/or AVS carb. #2 streeet choice is TQ.
Can wind out to 4500-5000rpms, but you will not have "drag racer" top end.
Last edited by mark7171; 10/27/09 01:51 PM.
|
|
|
Re: Truck 440 cam selection help...
[Re: mark7171]
#508777
10/27/09 03:14 PM
10/27/09 03:14 PM
|
Joined: Aug 2003
Posts: 4,481
Mesa, AZ
Pat_Whalen
OP
super gas
|
OP
super gas
Joined: Aug 2003
Posts: 4,481
Mesa, AZ
|
Quote:
The smaller summit cam with stock gears. The rule of the game says to match springs, cam, compression, intake,and carb for the engines' demand .
Use it with a Weiand action + (super low rise ribbed) and a 750 edelbrock AFB/or AVS carb. #2 streeet choice is TQ.
Can wind out to 4500-5000rpms, but you will not have "drag racer" top end.
Would an Edelbrock Performer intake work well with this combination?
|
|
|
Re: Truck 440 cam selection help...
[Re: DaytonaTurbo]
#508778
10/27/09 03:25 PM
10/27/09 03:25 PM
|
Joined: Aug 2003
Posts: 4,481
Mesa, AZ
Pat_Whalen
OP
super gas
|
OP
super gas
Joined: Aug 2003
Posts: 4,481
Mesa, AZ
|
Quote:
If you're looking for peak bottom end power and mileage, IMO you're best off sticking with a stock cam. The torq/rv grinds that are out there are so similar in spec to stock, I don't think it's worth the $$ to change. Put a set of straight dual exhaust on it, no x or h pipe, decent mufflers and even a stock 440 will sound decent.
Is there anything out there that is budget-based (~100 bucks) that would come with lifters that is close to stock. I'm not aware of the stock specifications. I'd love to not have to spend money in the arena but due to a rusted cam and lifters, I'll need to replace them. And since I'm replacing them, I figured I'd find out what's the best option.
|
|
|
Re: Truck 440 cam selection help...
[Re: Pat_Whalen]
#508779
10/27/09 03:41 PM
10/27/09 03:41 PM
|
Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
|
I Live Here
Joined: May 2003
Posts: 15,487
Florida
|
for low budget,you cant beat the smaller summet cam and lifter package I am going with a hughes whiplash for mine its for stock low comp engines,idles like a funny car and smoothes out around 2000 rpms,runs about 165$ for cam,IIRC should work fine in the truck I am building 
|
|
|
Re: Truck 440 cam selection help...
[Re: scratchnfotraction]
#508780
10/27/09 03:50 PM
10/27/09 03:50 PM
|
Joined: Oct 2009
Posts: 164
Indiana, United Staes, Vevay
LikarockCrusher
member
|
member
Joined: Oct 2009
Posts: 164
Indiana, United Staes, Vevay
|
Quote:
for low budget,you cant beat the smaller summet cam and lifter package
I am going with a hughes whiplash for mine
its for stock low comp engines,idles like a funny car and smoothes out around 2000 rpms,runs about 165$ for cam,IIRC
should work fine in the truck I am building
 Hey, Whats the specs. on that cam do you have them?
|
|
|
Re: Truck 440 cam selection help...
[Re: LikarockCrusher]
#508782
10/27/09 03:58 PM
10/27/09 03:58 PM
|
Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
|
I Live Here
Joined: May 2003
Posts: 15,487
Florida
|
look them up on hughes website  whiplash or muscle car cams,IIRC early intake closing to build cyl pressure,so its not a dog...good street cruzer cam gonna have them grind up a roller for the SB stepside I drive daily running the 60710 voodoo cam in the sb right now the 360 got the lunati bracket master II in it 292/292  want that sound but not the dog out the hole part the 292 has 
|
|
|
Re: Truck 440 cam selection help...
[Re: LikarockCrusher]
#508784
10/27/09 04:06 PM
10/27/09 04:06 PM
|
Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
|
I Live Here
Joined: May 2003
Posts: 15,487
Florida
|
no didnt right it down sorry.. just have read/heard good things on the whiplash and I want to try one if its as there sales pitch goes..idles like a funny car smoothes out around 2000 rpms and good for red light to red light performance its right up my ally for a poser cam in the 440 truck 
|
|
|
Re: Truck 440 cam selection help...
[Re: scratchnfotraction]
#508789
10/27/09 06:56 PM
10/27/09 06:56 PM
|
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
DaytonaTurbo
Too Many Posts
|
Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
|
Quote:
how is the whiplash too much??
its for a stock lopo engine with stock verter and low comp 
building cyl pressure is good on a lopo/low comp engine..no?
Depends on what you're using it for. Looking at the specs it's got a lot of duration but a fairly early intake valve closing angle to help build cylinder pressure. However it's also got a narrow LSA which is going to result in low vacuum and lowered throttle response and lower fuel mileage. If that's what you want then go for it. Should sound awesome at idle though. It sounds like a good cam for a low CR street machine, would not be my first choice for an off roader cam though.
|
|
|
Re: Truck 440 cam selection help...
[Re: DaytonaTurbo]
#508790
10/27/09 07:15 PM
10/27/09 07:15 PM
|
Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
|
I Live Here
Joined: May 2003
Posts: 15,487
Florida
|
I can see your point on that may not be a good one for a 4x4 and low end I am going with an 85 short bed 2 wheel drive for a street bruzer a poser cam for showboating on the streets
|
|
|
Re: Truck 440 cam selection help...
[Re: DaytonaTurbo]
#508791
10/27/09 07:33 PM
10/27/09 07:33 PM
|
Joined: Oct 2009
Posts: 164
Indiana, United Staes, Vevay
LikarockCrusher
member
|
member
Joined: Oct 2009
Posts: 164
Indiana, United Staes, Vevay
|
Quote:
Quote:
how is the whiplash too much??
its for a stock lopo engine with stock verter and low comp
building cyl pressure is good on a lopo/low comp engine..no?
Depends on what you're using it for. Looking at the specs it's got a lot of duration but a fairly early intake valve closing angle to help build cylinder pressure. However it's also got a narrow LSA which is going to result in low vacuum and lowered throttle response and lower fuel mileage. If that's what you want then go for it. Should sound awesome at idle though. It sounds like a good cam for a low CR street machine, would not be my first choice for an off roader cam though.
He said he has stock intake,heads,and comp.
|
|
|
Re: Truck 440 cam selection help...
[Re: LikarockCrusher]
#508792
10/27/09 08:36 PM
10/27/09 08:36 PM
|
Joined: Aug 2003
Posts: 4,481
Mesa, AZ
Pat_Whalen
OP
super gas
|
OP
super gas
Joined: Aug 2003
Posts: 4,481
Mesa, AZ
|
Quote:
Quote:
Quote:
how is the whiplash too much??
its for a stock lopo engine with stock verter and low comp
building cyl pressure is good on a lopo/low comp engine..no?
Depends on what you're using it for. Looking at the specs it's got a lot of duration but a fairly early intake valve closing angle to help build cylinder pressure. However it's also got a narrow LSA which is going to result in low vacuum and lowered throttle response and lower fuel mileage. If that's what you want then go for it. Should sound awesome at idle though. It sounds like a good cam for a low CR street machine, would not be my first choice for an off roader cam though.
He said he has stock intake,heads,and comp.
I think there may be some confusion.
Scratchin is going with the Hughes Whiplash cam for his truck.
I will most likely be going with the recommendations of the K6400 from Summit.
I believe both of us have very different goals for our trucks
|
|
|
|
|
