Ordered new 427

Reply Subscribe

Thread Tools

Search this Thread

Nov 4, 2010 | 06:37 PM

#21

djfury05

10 Second Club

iTrader: (30)

Joined: Jan 2008

Posts: 3,428

Likes: 4

From: Beaufort, SC

did you have the 243s prior to getting the 427 or did you order them with it? who did the CNC'ing?

Nov 5, 2010 | 02:41 AM

#22

cadenwade

Thread Starter

Staging Lane

Joined: Oct 2010

Posts: 70

Likes: 0

Quote:

Originally Posted by djfury05

did you have the 243s prior to getting the 427 or did you order them with it? who did the CNC'ing?

Livernois did them for me before i ordered the 427

I made 461 H/C with my ls1

Nov 11, 2010 | 02:27 AM

#23

cadenwade

Thread Starter

Staging Lane

Joined: Oct 2010

Posts: 70

Likes: 0

UPDATE

Well the motor will be here tomorrow I cant WAIT!!!!

And I go off the phone with EPS earlyer and he gave me the new specs on the custom cam. Should be insane.

Now thinking of a clutch. Any Ideas? Im thinking Monster stage 5.

Dec 31, 2010 | 08:36 PM

#24

cadenwade

Thread Starter

Staging Lane

Joined: Oct 2010

Posts: 70

Likes: 0

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.

Dec 31, 2010 | 10:44 PM

#25

98z8uup

TECH Fanatic

iTrader: (7)

Joined: Apr 2008

Posts: 1,111

Likes: 0

From: Covington ,GA

What are the cam spec's? Enjoy the new found power.

Jan 1, 2011 | 02:07 PM

#26

cadenwade

Thread Starter

Staging Lane

Joined: Oct 2010

Posts: 70

Likes: 0

Cam Specs are

247/258
647/647

Jan 1, 2011 | 02:24 PM

#27

demarco313

TECH Apprentice

Joined: Jan 2009

Posts: 375

Likes: 0

From: Michigan

Congrats with your new engine man!

Last edited by demarco313; Jan 1, 2011 at 02:58 PM.

Jan 2, 2011 | 09:28 AM

#28

The Alchemist

UNDER PRESSURE MOD

iTrader: (19)

Joined: Nov 2001

Posts: 10,813

Likes: 15

From: Doylestown PA

I think 550 rwhp na is optimistic based on the heads and intake selected, they may not flow well enough. Let us know how you make out.

LS1 Tech Stories

The Best V8 Stories One Small Block at Time

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Brett Foote

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Pouria Savadkouei

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Verdad Gallardo

7 Most Reliable High-Performance Engines GM Has Ever Built

Verdad Gallardo

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Jan 2, 2011 | 10:19 AM

#29

WKMCD

TECH Junkie

iTrader: (2)

Joined: Mar 2005

Posts: 3,416

Likes: 2

From: Northern VA

Quote:

Originally Posted by The Alchemist

I think 550 rwhp na is optimistic based on the heads and intake selected, they may not flow well enough. Let us know how you make out.

Agreed - but hopefully, we'll find out soon.

Jan 2, 2011 | 10:25 AM

#30

Gordon0652

TECH Junkie

iTrader: (4)

Joined: Sep 2006

Posts: 3,188

Likes: 2

Quote:

Originally Posted by The Alchemist

I think 550 rwhp na is optimistic based on the heads and intake selected, they may not flow well enough. Let us know how you make out.

Quote:

Originally Posted by WKMCD

Agreed - but hopefully, we'll find out soon.

Agree...
I have only 13 more cubes and a some other stuff and i'll be more than happy with 620rwhp NA. Someone on here said 570+rwhp for the OP... I do not know about that one, being very optimistic.

Jan 2, 2011 | 11:42 AM

#31

The Alchemist

UNDER PRESSURE MOD

iTrader: (19)

Joined: Nov 2001

Posts: 10,813

Likes: 15

From: Doylestown PA

Even with the best 243's, with a FAST 92 combo, my guess is 515/510, which is definitely going to be fun on the street.

I want to do a bigger cube motor possibly this year, and re-use my PI heads and get a solid 500 rwtq and whatever horsepower as I just want a really fun street car.

Jan 5, 2011 | 09:03 PM

#32

cadenwade

Thread Starter

Staging Lane

Joined: Oct 2010

Posts: 70

Likes: 0

guys i seriously think it going to be right around 550 i will be putting it on the dyno after the break in I have 150 miles on it now

Jan 5, 2011 | 09:42 PM

#33

LS6427

Banned

iTrader: (2)

Joined: May 2008

Posts: 11,289

Likes: 13

From: South Florida

Don't be surprised if you do not crack 515 RWHP....those heads are terrible for any engine over 400ci, especially one with 13:1 cr. You need 400cfm heads for that thing, then you'll close in on 600 RWHP. But sometimes cash doesn't allow the best stuff.........it'll be fun with the 150 shot for sure. I got tired of my ~500 RWHP fast.....like in a couple weeks.

.