Cam specs

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darkcorp
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Stroker Displacement: 4.6L
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Vehicle Make: JEEP
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Cam specs

Post by darkcorp »

I've got a new Stage1 505performance cam on late 4.0 core.
I would rebuild my 4.6 stroker on 944.030 KB's ICONs.
I have cam specs picture but I can't understand which one of separation angles should I use in Stroker Compression Ratio Calculator to calculate DCR? 114 or 110 degree?
2019-02-10 18-05-13_2.jpg
2019-02-10 18-05-24_2.jpg
Anyway I assume to mill block to reach 0.01" deck clearance. With 0.043" gasket it will give me CR9.5 and 0.053 quench.
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Russ Pottenger
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Re: Cam specs

Post by Russ Pottenger »

Hi Albert,

The 114 number is the number that you use and that is the lobe separation angle.
110 is the lobe centerline used for purpose of degreeing the camshaft in
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darkcorp
I made it to triple digits!
I made it to triple digits!
Posts: 101
Joined: November 14th, 2013, 12:21 am
Stroker Displacement: 4.6L
Vehicle Year: 1999
Vehicle Make: JEEP
Vehicle Model: GCh 4.0
Location: Kazan/Russia
Contact:

Re: Cam specs

Post by darkcorp »

Dear Russ!

Thanks a lot! You are helpful as always.

So my calculations give me CR9.51 and DCR7.59 assuming parameters above. That is what I look for.
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darkcorp
I made it to triple digits!
I made it to triple digits!
Posts: 101
Joined: November 14th, 2013, 12:21 am
Stroker Displacement: 4.6L
Vehicle Year: 1999
Vehicle Make: JEEP
Vehicle Model: GCh 4.0
Location: Kazan/Russia
Contact:

Re: Cam specs

Post by darkcorp »

Are these numbers nice?
config 2019.JPG
Config:
- block WJ 1999 milled 0.020"
- crank 4.2
- rods 4.0 WJ 1999
- pistons KB'944.030 21.7cc dish; 1.353" compression height
- molly rings
- 505perf stage1 cam on a late style core
- 0.043 gasket
- stock minor ported head

CR9.48/DCR7.57
Quench 0.051

Or maybe to milll block 0.010"-0.015"?

Thanks
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Russ Pottenger
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Re: Cam specs

Post by Russ Pottenger »

I’d take another .010 to .015 off the deck to tighten up the quench.

My .02
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darkcorp
I made it to triple digits!
I made it to triple digits!
Posts: 101
Joined: November 14th, 2013, 12:21 am
Stroker Displacement: 4.6L
Vehicle Year: 1999
Vehicle Make: JEEP
Vehicle Model: GCh 4.0
Location: Kazan/Russia
Contact:

Re: Cam specs

Post by darkcorp »

Do you mean take 0.030-0.035 off?

I guess not all blocks and rods might be the same height and length.
Russ Pottenger
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Vehicle Model: Cherokee

Re: Cam specs

Post by Russ Pottenger »

You’ll want shoot for .035 - .045 piston to head.
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