My 427 and YSi Build, My Attempt to Cure Mod Fever (Lots of Pics)
12-19-2009, 10:46 AM
#1
Safety Car
Thread Starter
My 427 and YSi Build, My Attempt to Cure Mod Fever (Lots of Pics)
I have been driving my vette on the stock block for years without any issues. I figured it was finally time to upgrade to a forged engine. I knew that if I forged my stock block I would always want more displacement. In the end I decided on an LS7 427 for the build.
Here is a list of the major parts for the new project;
-A&A forged LS7 with Patriot Heads running 9.2 to 1
-Comp Cams 232/240 LSA 116
-A&A newest YSi SC kit with 3” pulley
-8 rib setup
-Tial BOV
-DeWitts radiator (2 inch shorter made for SC clearance)
-American Racing 1 7/8 headers
-RPM SFI flexplate
-3 Bar sensor for new tune
Carry over Parts;
-RPM Level VI Tranny
-DTE Stage 4 3.42s
-Vigilante 2600
-ECS fuel system
-Alky Control dual nozzle meth
*****UPDATE ON POST 63*****
YSi vs S-Trim
LGM 1 3/4 headers vs American Racing 1 7/8
DeWitts shortened radiator vs Stock
RPM Flexplate vs Stock
LS1 vs Forged LS7
Here is a list of the major parts for the new project;
-A&A forged LS7 with Patriot Heads running 9.2 to 1
-Comp Cams 232/240 LSA 116
-A&A newest YSi SC kit with 3” pulley
-8 rib setup
-Tial BOV
-DeWitts radiator (2 inch shorter made for SC clearance)
-American Racing 1 7/8 headers
-RPM SFI flexplate
-3 Bar sensor for new tune
Carry over Parts;
-RPM Level VI Tranny
-DTE Stage 4 3.42s
-Vigilante 2600
-ECS fuel system
-Alky Control dual nozzle meth
*****UPDATE ON POST 63*****
YSi vs S-Trim
LGM 1 3/4 headers vs American Racing 1 7/8
DeWitts shortened radiator vs Stock
RPM Flexplate vs Stock
LS1 vs Forged LS7
Last edited by Mike04; 07-08-2010 at 06:04 PM.
12-19-2009, 10:50 AM
#2
Former Vendor
Going to be a killer build! All the comparison pics are cool! The YSi is going to make your smile stretch from ear to ear! 
I'll be keeping an eye on this one!
I'll be keeping an eye on this one!
12-19-2009, 11:08 AM
#3
Team Owner
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I love my YSI on the car.
12-19-2009, 12:34 PM
#5
Race Director
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2017 C5 of the Year Finalist
St. Jude Donor '08
Very cool Build!!
One question, Do you or does anyone for that matter have comments about the shorter dewits Rad having enough cooling capacity for high HP cars?? I also just bought this rad with the spawl fans, and my Mech was curious about the cooling since it was less surface space.
Thanks, and killer setup!
One question, Do you or does anyone for that matter have comments about the shorter dewits Rad having enough cooling capacity for high HP cars?? I also just bought this rad with the spawl fans, and my Mech was curious about the cooling since it was less surface space.
Thanks, and killer setup!
12-19-2009, 03:27 PM
#7
Safety Car
Thread Starter
Very cool Build!!
One question, Do you or does anyone for that matter have comments about the shorter dewits Rad having enough cooling capacity for high HP cars?? I also just bought this rad with the spawl fans, and my Mech was curious about the cooling since it was less surface space.
Thanks, and killer setup!
One question, Do you or does anyone for that matter have comments about the shorter dewits Rad having enough cooling capacity for high HP cars?? I also just bought this rad with the spawl fans, and my Mech was curious about the cooling since it was less surface space.
Thanks, and killer setup!
12-19-2009, 05:00 PM
#9
Burning Brakes
I'll be interested in your dyno results. I have a C5R based 427 with LS7 heads and intake and an F1C Procharger. This combo made 788 RWHP (through a 6 speed manual) at only 8 pounds of boost on 93 octane gas.
12-19-2009, 07:21 PM
#10
Safety Car
Thread Starter
12-19-2009, 08:32 PM
#13
Team Owner
Member Since: Jan 2007
Location: cookeville tennessee
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Very cool Build!!
One question, Do you or does anyone for that matter have comments about the shorter dewits Rad having enough cooling capacity for high HP cars?? I also just bought this rad with the spawl fans, and my Mech was curious about the cooling since it was less surface space.
Thanks, and killer setup!
One question, Do you or does anyone for that matter have comments about the shorter dewits Rad having enough cooling capacity for high HP cars?? I also just bought this rad with the spawl fans, and my Mech was curious about the cooling since it was less surface space.
Thanks, and killer setup!
12-19-2009, 08:32 PM
#14
Melting Slicks
Very cool Build!!
One question, Do you or does anyone for that matter have comments about the shorter dewits Rad having enough cooling capacity for high HP cars?? I also just bought this rad with the spawl fans, and my Mech was curious about the cooling since it was less surface space.
Thanks, and killer setup!
One question, Do you or does anyone for that matter have comments about the shorter dewits Rad having enough cooling capacity for high HP cars?? I also just bought this rad with the spawl fans, and my Mech was curious about the cooling since it was less surface space.
Thanks, and killer setup!
Awesome build Mike!!
12-19-2009, 09:18 PM
#17
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St. Jude Donor '08
Thanks again, and sorry for the hijack buddy!!:o
12-19-2009, 09:21 PM
#18
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St. Jude Donor '15
12-20-2009, 04:52 AM
#20
Team Owner
