Cam Specs is this too big a cam for me?

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cmorrow

cmorrow

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Hello all, It has been a long time since I've looked at Camshafts, and don't remember exactly what are good numbers for int. exh. duration and lift. The reason I ask is I've found a cam at a reasonable price that is new and wondered if it is a perfect fit for me? The Cam is a roller cam and the specs are INT=262 EXH=307 Dur= 206-245 Lift= INT=450 EXH 541. My car is a Duster with a 318 with a roller cam its a 88 motor, headers, 4 barrel intake and a 904, at the moment manual brakes. Is this cam too wild for the engine without a stall converter, as I said its been forever since I've thought about or bought a cam and the 541 seems high?
 
I think it would work great you should still have a close to stock idle with good vacuum. and pick up 30 hp over a stockcamshaft .
 
As long as the heads can accept the lift under the valve spring, you'll be fine.
 
cmorrow said:
Hello all, It has been a long time since I've looked at Camshafts, and don't remember exactly what are good numbers for int. exh. duration and lift. The reason I ask is I've found a cam at a reasonable price that is new and wondered if it is a perfect fit for me? The Cam is a roller cam and the specs are INT=262 EXH=307 Dur= 206-245 Lift= INT=450 EXH 541. My car is a Duster with a 318 with a roller cam its a 88 motor, headers, 4 barrel intake and a 904, at the moment manual brakes. Is this cam too wild for the engine without a stall converter, as I said its been forever since I've thought about or bought a cam and the 541 seems high?
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450 INT 541 EXH ?????:eek:ops: is it solid or hyd? if its 550 INT 541 EXH its to big with out a stall!!!!
 
I am very confused by those specs. I think you made a mistake reading them.
 
weird cam specs...

[ame="http://www.ebay.com/itm/New-Comp-Cam-Roller-20-000-9-Custom-Grind-Mopar-Small-Block-Chrysler-Dodge-/321521241566?pt=Motors_Car_Truck_Parts_Accessories&hash=item4adc28cdde&vxp=mtr"]New Comp Cam Roller 20 000 9 Custom Grind Mopar Small Block Chrysler Dodge | eBay[/ame]
 
1970Duster said:
Is it just me or does it seem like someone screwed up to specs (said the wrong number) and now can't return and is trying to recover some losses? Just sayin.
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no, its a roller on the intake lobe, and a flat tappet on the exhaust, that's because intake likes lift and exhaust is more dependent on duration
 
Baxter61 said:
no, its a roller on the intake lobe, and a flat tappet on the exhaust, that's because intake likes lift and exhaust is more dependent on duration
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Wait what? How can cam have roller lobe and a flat tappet lobe on the same cam? What than keeps the single roller lifter from spinning? I know they have single, dual (or split if you prefer) and quad duration cams; however, I've never heard or seen a two different style lobes (roller and flat tappet) on the same cam. That said, why would someone want that other than to prove it can be done? I'm a massive fan of roller cams, they bring you into the power curve sooner and keep you there longer vs a flat tappet cam.
 
I wouldn't touch that cam with a 10 foot pole unless it was FREE and I could send it back to be reground.
 
Thanks guys, I was trying to match it up with something this morning before work and thought I was too tired and it had been too long.. I'm glad I didn't waste any money on that cam...
 
crackedback said:
I wouldn't touch that cam with a 10 foot pole unless it was FREE and I could send it back to be reground.
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Likewise "crackedback".

cmorrow said:
Thanks guys, I was trying to match it up with something this morning before work and thought I was too tired and it had been too long.. I'm glad I didn't waste any money on that cam...
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I'd love to know what that thing was ground for??? I'm glad you didn't bite on it though. :thumbrig:
 
Baxter61 said:
no, its a roller on the intake lobe, and a flat tappet on the exhaust, that's because intake likes lift and exhaust is more dependent on duration
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Uhh, I think you read the specs backwards and not sure where you got their a mix of lobes. It shows more lift and duration on the exhaust, and I looked up the lobes in the Comp catalog. They are indeed a tremendous duration and lift split and I would in no way want it but the int and exh are both roller lobes.Not a mix
 
fishy68 said:
Uhh, I think you read the specs backwards and not sure where you got their a mix of lobes. It shows more lift and duration on the exhaust, and I looked up the lobes in the Comp catalog. They are indeed a tremendous duration and lift split and I would in no way want it but the int and exh are both roller lobes.Not a mix
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It was a joke
 
That's the weirdest cam spec I've ever seen. I am surprised it actually got produced like that without someone pulling the pin.. I wonder what it was for?

A misinformed turbo grind perhaps?
 
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