What cam for a 427?

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09-05-2007, 12:31 PM

gen3performance

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What cam for a 427?

Just wondering what the minimum size camshaft is necessary for making 600 flywheel horse on a 427 with 11.5 compression. Any input will be appreciated.

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09-05-2007, 01:05 PM

See5

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Really not much. There are crazy big cams and friendly cams. We have tried both and with a L92 headed motor a GA cam and a 22x-23x/~610/112 will do about 530/530/ RW.

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09-05-2007, 01:11 PM

Old SStroker

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Quote:

Originally Posted by gen3performance

Just wondering what the minimum size camshaft is necessary for making 600 flywheel horse on a 427 with 11.5 compression. Any input will be appreciated.

Check with LG Motorsports. Lou gets 600 fw easily. It's a proven product.

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09-05-2007, 01:24 PM

echo3313

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a ls7x cam package from vengeance will put you up there

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09-05-2007, 01:55 PM

Stang's Bane

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Wow, am I missing where he says that he is running LS7 heads????

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09-05-2007, 02:32 PM

MerlinPro

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We made 614 with 637/657, 248/254@ .050 /111. That was with our LS1X cathedral head.

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09-06-2007, 07:52 PM

gen3performance

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I'm running l92's

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09-06-2007, 11:39 PM

gunnerdown

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Quote:

Originally Posted by gen3performance

Just wondering what the minimum size camshaft is necessary for making 600 flywheel horse on a 427 with 11.5 compression. Any input will be appreciated.

I have this cam (below) in my 427 w/All Pro heads 2.08 / 1.60 valves and Kooks stepped 1 7/8" to 2" headers... cool but comfortable lope, I'm extremely happy with it. 565 hp/578 torque at the crank without tune, just installed the engine 2 weeks ago, running speed density temporarily and it is extremely powerful... waiting on my tuner… the engine will be over 600hp after tune. Although got bad news today my block is leaking coolant into the oil so I had to order a block today (dang) I hate waiting. Regardless this cam is awesome… 600+ lift isn’t always necessary or needed.

Comp Cams
Part # (custom): 54-000-11
Grind # (custom): LS1 3717R / 3719R HR114+4

Gross valve lift Intake .571
Gross valve lift Exhaust .574
@ .006 Tappet lift Intake 281
@ .006 Tappet lift Exhaust 285
Valve Timing @ .050 OPEN Intake 4 BTDC
Valve Timing @ .050 OPEN Exhaust 54 BBDC
Valve Timing @ .050 CLOSE Intake 44 ABDC
Valve Timing @ .050 CLOSE Exhaust 2 ATDC
@ 110.0 Intake center line
Duration @ .050 Intake 228
Duration @ .050 Exhaust 232
Lobe lift Intake .3360
Lobe lift Exhaust .3380
Lobe separation 114.0

gunner