L E 2-- Heads and Intake (Pictures)
Thread Starter
Team Owner
Joined: Aug 2005
Posts: 34,988
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From: Riverside County Southern California
Co-winner 2020 C4 of the Year - Modified
2018 Corvette of Year Finalist
2017 C4 of Year
2016 C7 of Year Finalist
St. Jude Donor '09 thru '20
L E 2-- Heads and Intake (Pictures)
Received the LE2 package from Elliot Portworks last Friday. I'd say Santa showed up early.
Heads, intake and cam (blue card). I do not remember who recommended me Elliot but, THANK YOU
He has outstanding customer service, answered all my questions and provided me with all part numbers to complete my project.
Heads, intake and cam (blue card). I do not remember who recommended me Elliot but, THANK YOU
He has outstanding customer service, answered all my questions and provided me with all part numbers to complete my project.
Last edited by PLRX; Nov 18, 2008 at 12:43 PM.
Team Owner
Joined: Oct 2004
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From: altered state
St. Jude Donor '05
Looks like youre well on your way to getting it back together again. I do not envy your job of changing a cam in a C4. Ill leave the next question to our Canuck friend.
Racer
Joined: Oct 2007
Posts: 478
Likes: 1
I wonder if the intake cam specs are correct on the card. It has .050" at 223 degrees. Then the .006" specs are 288. That is a difference of 65 degrees. That is quite abit in this day and age. Maybe it should read 278@.006"?
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Advanced
Joined: Feb 2006
Posts: 72
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From: Red Oak Tx
No need to change guides or seats when going to a 2.02/1.60 in LT4 heads. Just re machine the setas and they are fine.
That is not a HOT CAM, it is a cam that will pass emissions as easily but make more power though.
The intake lobe on the cam card is rated at .004 duration (seat timing) and the exhaust lobe is listed at a more common .006 duration.
With both measured at .006 duration, it is 276/281 (same as CC 503 cam).
The lift on the cam card is measured with a 1.5 rocker. A 1.6 rocker brings the lift to .565/.565.
The blue dye on intake rocker bosses is to show what studs need sealant used on threads.
Lloyd
That is not a HOT CAM, it is a cam that will pass emissions as easily but make more power though.
The intake lobe on the cam card is rated at .004 duration (seat timing) and the exhaust lobe is listed at a more common .006 duration.
With both measured at .006 duration, it is 276/281 (same as CC 503 cam).
The lift on the cam card is measured with a 1.5 rocker. A 1.6 rocker brings the lift to .565/.565.
The blue dye on intake rocker bosses is to show what studs need sealant used on threads.
Lloyd
Thread Starter
Team Owner
Joined: Aug 2005
Posts: 34,988
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From: Riverside County Southern California
Co-winner 2020 C4 of the Year - Modified
2018 Corvette of Year Finalist
2017 C4 of Year
2016 C7 of Year Finalist
St. Jude Donor '09 thru '20
Melting Slicks
Joined: Jun 2002
Posts: 2,705
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From: Chesapeake Beach Maryland
2015 C5 of Year Finalist
Nice work Lloyd!!
I love my LE2 setup. Its running great and the power up top is really incredible compared to the factory LT-1
LE2 porting for your LT4 should be hot!!!
I love my LE2 setup. Its running great and the power up top is really incredible compared to the factory LT-1
LE2 porting for your LT4 should be hot!!!
Thread Starter
Team Owner
Joined: Aug 2005
Posts: 34,988
Likes: 515
From: Riverside County Southern California
Co-winner 2020 C4 of the Year - Modified
2018 Corvette of Year Finalist
2017 C4 of Year
2016 C7 of Year Finalist
St. Jude Donor '09 thru '20
Down the road, once I get most of this project off, my LT1 is next.
Team Owner
Joined: Apr 2001
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From: Overwhelmed as one would be, placed in my position.... DFW, TX
St. Jude Donor '05
Dumb question- is there any writeup on how to do a H/C swap on C4's? I'm --->this<--- close to pulling the trigger, but I want to make sure I know WTF I'm doing.
I assume I have to remove:
Radiator, PS rack, and everything on the front of the motor. I already have a EWP, an ATI damper, and a new(ish) opti. Anything else that should be replaced "while I'm in there"? Oil pump and timing chain?
Is there a trick to keeping the lifters from dropping?
What about tuning? Every shop I call doesn't have LT1 edit.
I assume I have to remove:
Radiator, PS rack, and everything on the front of the motor. I already have a EWP, an ATI damper, and a new(ish) opti. Anything else that should be replaced "while I'm in there"? Oil pump and timing chain?
Is there a trick to keeping the lifters from dropping?
What about tuning? Every shop I call doesn't have LT1 edit.
Race Director
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From: O'Fallon Missouri