Any thoughts/experience with this cam kit?
- Thread starter koosh
- Start date
496 polara
Well-Known Member
My first thought would be why do you think this is the right cam for you?
koosh
Well-Known Member
Because it fits my budget! Lol
(And a friend put one in his Roadrunner and so far so go?)
Specs?
496 polara
Well-Known Member
Maybe if you tell us your complete drivetrain and what you want out of it we can better help you.
If you have a low compression motor and want it to sound nasty then this may be the cam for you. I don't generally like to see that much of a split in duration but it may work in certain setups.
If you have a low compression motor and want it to sound nasty then this may be the cam for you. I don't generally like to see that much of a split in duration but it may work in certain setups.
496 polara
Well-Known Member
| Engine Family | Chrysler 383-440 c.i. 8 Cylinder (1959-1980) |
|---|---|
| RPM Operating Range | 2,000-5,800 |
| Cam Type | Hydraulic Flat Tappet |
| Camshaft Series | Thumpr |
| Usage | Street/Performance |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
| Advertised Intake Duration | 279 |
| Advertised Exhaust Duration | 296 |
| Intake Duration at .050 Inch Lift | 227 |
| Exhaust Duration at .050 Inch Lift | 241 |
| Intake Valve Lift | 0.486 |
| Exhaust Valve Lift | 0.473 |
| Lobe Separation | 107 |
| Lifter Style | Hydraulic Flat Tappet |
| Make | Chrysler |
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Jeez...what dusty crypt was opened to unearth this relic?
With a higher stall converter, thus statement is pointless.
Geoff 2
Well-Known Member
The information is just as relevant today as when it was printed. That is because the info was based on the 440's rod/stroke ratio.......which hasn't changed since that printing.
lewtot184
Well-Known Member
73 degrees of overlap with a hydraulic tappet. If you don't know how to manage that you won't be happy.
XCELLR8
Well-Known Member
I have this cam kit in a 400 smogger motor. 8/1 CR. I agree with all replies above, need to know more and what your goal is.
This is what I have: stock 1977 400 with 8/1 CR, performer intake, Edelbrock 800cfm carb, Stealth heads, Thumper cam kit, 1 5/8 long tube headers, Progression ignition system, stock converter with stock 727.
I fought this combo for 7 years with the Chrysler electronic ignition system. Ran like crap, would not idle, and had no power, hell I could not even power brake and get the tires to turn over. I changed the carb to a Holley 600cfm no change. This summer after rebuilding the Edelbrock for the 3rd time I asked for some advice on here. My ignition system quit, so I upgraded to the Progression and took Geoff 2 advice and gave the engine lots of timing. I ended up at 42* at idle and my carb problems went away, along with the major unburnt gas smell. I now can get the tires to spin just by stabbing the gas.
I'm now looking at getting a smaller less split duration cam and putting in some higher compression pistons in it. The cam sounds bad ***, but when the rest of the package doesn't work and you can't enjoy it, it gets old real quick. Just my .02
This is what I have: stock 1977 400 with 8/1 CR, performer intake, Edelbrock 800cfm carb, Stealth heads, Thumper cam kit, 1 5/8 long tube headers, Progression ignition system, stock converter with stock 727.
I fought this combo for 7 years with the Chrysler electronic ignition system. Ran like crap, would not idle, and had no power, hell I could not even power brake and get the tires to turn over. I changed the carb to a Holley 600cfm no change. This summer after rebuilding the Edelbrock for the 3rd time I asked for some advice on here. My ignition system quit, so I upgraded to the Progression and took Geoff 2 advice and gave the engine lots of timing. I ended up at 42* at idle and my carb problems went away, along with the major unburnt gas smell. I now can get the tires to spin just by stabbing the gas.
I'm now looking at getting a smaller less split duration cam and putting in some higher compression pistons in it. The cam sounds bad ***, but when the rest of the package doesn't work and you can't enjoy it, it gets old real quick. Just my .02
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