Comp cam reccomends this cam

[sabre67]

Hi all, submitted cam form to Comp this is what they sent back. Thoughts please The car will not be driven daily. Car shows, cruise-ins, weekend warrior, some strip time. What are your thoughts on their choice? Thanks

 

[1967coronet440]

Im having a hard time reading any of the papers, really blurry on my iPhone.

 

[sabre67]

Im having a hard time reading any of the papers, really blurry on my iPhone.

the cam specs are
525/525 lift duration 275 Intake, 287 exhaust
110 lobe separation
rpm range 2000-5800
Comp Cam part#21-227-4

 

[Mebsuta]

I think it's Comp 21-227-4 (XE275HL).

 

[sabre67]

the cam specs are
525/525 lift duration 275 Intake, 287 exhaust
110 lobe separation
rpm range 2000-5800
Comp Cam part#21-227-4

71 Duster
383 cu in
727 TF
4.10 Dana 60
28 in tire
650 Demon carb
Schumacher headers
Edelbrock performer dual plane
stock iron heads
2800 converter

 

[moobster]

Safe pick on their part, no too agressive.

 

[Hemi 354]

I have a similar comp cam in my 383. It runs like a bat out of hell. I also only drive my to car shows and very little around town,.....and an occasional challenge from a 5.0 Mustang. ZAP !

 

[1967coronet440]

I’m no cam specialist or engine builder but looks like a decent cam for you, you’re iron heads are going to hold you back.

 

[Mike67]

Might read this..
https://www.hotrod.com/articles/mopar-440-update/

 

[sabre67]

I have a similar comp cam in my 383. It runs like a bat out of hell. I also only drive my to car shows and very little around town,.....and an occasional challenge from a 5.0 Mustang. ZAP !

So the stock iron heads will handle .525 lift ok ?

 

[Lefty71]

So the stock iron heads will handle .525 lift ok ?[/QUOTE

They'll handle it.

 

[Lefty71]

The flow will become the bottleneck. You will need to watch max lift will be close to the valve seals, and may need the guides clearanced a little. Sounds like a fun cam.... I cant read your paperwork well.... what springs did they recommend?? HTH, Lefty71

 

[69a100]

If you can get a die grinder on those heads and do some pocket porting and clean up will help tons more then you can think. Do it! Good Luck

 

[sabre67]

The flow will become the bottleneck. You will need to watch max lift will be close to the valve seals, and may need the guides clearanced a little. Sounds like a fun cam.... I cant read your paperwork well.... what springs did they recommend?? HTH, Lefty71

924-16

 

[5.7 hemi]

If you use that cam or any of their XE series, it’s gonna sound like a sewing machine on steroids!

 

[sabre67]

If you use that cam or any of their XE series, it’s gonna sound like a sewing machine on steroids!

sorry don't get what your saying, rough idle,im expecting?

 

[5.7 hemi]

Instead of the engine running quiet at idle, it’ll sound like a sewing machine. It’s due to the fast ramp rate of the XE series cams. Takes a bit to get used to hearing it, but when you get on it, it’s all sweet music!

 

[sabre67]

Instead of the engine running quiet at idle, it’ll sound like a sewing machine. It’s due to the fast ramp rate of the XE series cams. Takes a bit to get used to hearing it, but when you get on it, it’s all sweet music!

Will it still have that lumpy sound at idle with a added whine

 

[5.7 hemi]

There is no “whine” to that cam. And yes it’ll have some lope to the idle. Google that cam and you’ll get some you tube videos of the sound.

 

[Mike67]