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427 & EPS cam

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Old 11-25-2010, 01:07 PM
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I want to see what these LS6 heads are going to do on this big cube motor. I've also been waiting to see a big EPS cam out there since the small ones make big numbers.

Cam specs?
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Old 11-25-2010, 09:27 PM
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what did the old setup run at the track? new goals?
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Old 11-26-2010, 02:17 PM
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Originally Posted by cadenwade
Thats all i have right now.

will go ls7 heads when i can afford it.
You can't run the LS7 heads on a 4 inch bore. The WCCH Stage 3 L92 heads flow 380 which is right there with the LS7 heads. My 427 is 4 inch stoke and 4.125 bore which works a little better because of less valve shrouding.

Good luck.
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Old 11-26-2010, 07:17 PM
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Originally Posted by WSsick
I want to see what these LS6 heads are going to do on this big cube motor. I've also been waiting to see a big EPS cam out there since the small ones make big numbers.

Cam specs?
Intake Lobe 247 Degrees @ .050" Tappet Lift with .643 Total Lift (1.7 Rocker)

Exhaust Lobe 258 Degrees @ .050" Tappet Lift with .647 Total Lift (1.7
Rocker)

The lobe separation on the cam is 112 degrees with 2 degrees advance.
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Old 11-26-2010, 07:19 PM
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Originally Posted by Checkmate
what did the old setup run at the track? new goals?
Never ran on current set up because when i finally got this set up all done the starter broke off the block.

But im shooting for a healthy 10.
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Old 12-01-2010, 07:04 PM
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any dyno numbers yet.
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Old 12-05-2010, 04:15 PM
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nope still waiting on eps cam going on forth week now
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Old 12-05-2010, 04:26 PM
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Originally Posted by cadenwade
nope still waiting on eps cam going on forth week now
Mine took 6 weeks to arrive, but I suppose it was worth the wait.
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Old 12-05-2010, 04:52 PM
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damn two more weeks i dont know if i can take it.
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Old 12-06-2010, 06:17 PM
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What or Who's Stage 3 LS6 heads are you running?
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Old 12-06-2010, 07:57 PM
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My brother and I would both highly recommend steering clear of the 12-bolt.
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Old 12-06-2010, 09:05 PM
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Don't get a 12 bolt. MWC Fab 9" is where it's at. I love mine.
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Old 12-06-2010, 10:29 PM
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Originally Posted by LS1ROPER
What or Who's Stage 3 LS6 heads are you running?
livernois
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Old 12-31-2010, 08:36 PM
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Ok motor is in now and running great I did do some changes tho

Now it on E85 and bumped the CR to 13:1.

It was crazy when i measured the pushrods because it now needed two different sizes.
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Old 01-03-2011, 09:05 AM
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Numbers?
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Old 01-03-2011, 10:53 AM
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Not going to make 550 but I'm willing to go 515-520.
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Old 01-03-2011, 11:37 AM
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my 414 with a 244/248...612/615..112, TEA/TFS 235cc heads and a ported FAST 90/90 made 560rwhp. comp was 11.7. so i would say atleast 550
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Old 01-03-2011, 12:23 PM
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Hard to say with the heads and intake.Should be over 500rw no problem.

My 427ci had ETP heads and a 240 Cam but ran a SV intake. Made 580hp/540tq. Lost 25hp with the fast up top.
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Old 01-05-2011, 09:11 PM
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Originally Posted by jeremym
my 414 with a 244/248...612/615..112, TEA/TFS 235cc heads and a ported FAST 90/90 made 560rwhp. comp was 11.7. so i would say atleast 550
Thats what I see.

I work at Lethal performance and I have seen this motor make 580 on 225 AFR heads so 550 should not be hard.
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Old 02-23-2011, 12:28 AM
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Sorry to bump an older thread but I had a similar motor in my Camaro...

403 Iron Block
Camshaft within 2 degree's on the exhaust and same intake, 112+3lsa
Vic JR/Accufab 4brl
3475# raceweight
6spd 3.89 gear


Made 515rwhp/458rwtq
6.66@105.7
10.37@131.7

668rwhp/68xrwtq - 150 shot
6.19@114
9.64@143
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