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  See more parts for Cadillac CT5 V
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Texas Speed & Performance 427ci 7.0L Iron LT Gen V Short Block for Cadillac, Chevrolet, Pontiac - TSP-427SB-L8T-STD10

Texas Speed & Performance TSP-427SB-L8T-STD10 Short Block

If you’re serious about performance upgrades for your GM vehicle, the TSP-427SB-L8T-STD10 from Texas Speed & Performance is a game changer. Known as "The Iron Giant," this 427ci (7.0L) Iron LT Gen V Short Block is designed for those who demand power and reliability without the long wait times typically associated with custom builds.

Why Choose the TSP-427SB-L8T-STD10?

Texas Speed has streamlined their short-block program to deliver these high-performance engines faster than ever. Each engine is constructed with the same meticulous attention to detail and quality as their custom builds, meaning you get a pre-assembled powerhouse ready to drop into your ride. All engines undergo rigorous balancing, blueprinting, and assembly in-house, ensuring they meet TSP's exacting standards.

Technical Specifications

  • GM Gen 5 Iron 6.6L L8T Block - Bored to 4.125" Bore
  • Displacement: 427ci / 7.0L
  • ARP Main Bolt Kit for added strength
  • TSP 4.000" Forged LT Crankshaft - 58x Reluctor - 8-Bolt
  • TSP/Wiseco Forged 4.125" LT Pistons - Suitable for Boost or Naturally Aspirated Applications with Valve Reliefs
  • TSP 6.125" H-Beam Connecting Rods or K1 Technologies 4340 Steel 6.125" H-Beam Connecting Rods
  • Capable of supporting up to 1000 HP

Fitment

This short block is compatible with a wide range of GM models, making it an excellent choice for various performance builds:

  • Cadillac CT5-V Blackwing 2022-2023
  • Cadillac CTS-V 2004-2019
  • Cadillac Escalade 2005-2014
  • Chevrolet Camaro 1998-2015
  • Chevrolet Colorado 2004-2012
  • Chevrolet Corvette 1997-2013
  • Chevrolet Silverado 1500 1999-2013
  • Chevrolet SS 2014-2017
  • Chevrolet Suburban 2000-2014
  • Chevrolet Tahoe 2000-2014
  • Chevrolet Trailblazer 2006-2009
  • GMC Sierra 1500 1999-2013
  • GMC Yukon 1999-2014
  • Pontiac Firebird 1998-2002
  • Pontiac G8 2008-2009
  • Pontiac GTO 2004-2006
  • Universal Retrofit 1997-2024

Important Note

  • This engine is a direct fit for LTX trucks; however, LTX cars may require front accessory modifications for proper installation.

What Owners Are Saying

Fellow Chevrolet Camaro owners have reported impressive results after installing the TSP-427SB-L8T-STD10. One owner shared, "I dropped this short block into my 2010 Camaro SS, and the power increase was immediate. The fit was perfect, and I love how it handles at high RPMs!"

Upgrade your engine with the TSP-427SB-L8T-STD10 and experience the difference that quality craftsmanship and performance engineering can make in your vehicle.

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2022-2023
 Cadillac CT5 V
2004-2019
 Cadillac CTS-V
2005-2014
 Cadillac Escalade
1998-2002, 2010-2015
 Chevrolet Camaro
2004-2012
 Chevrolet Colorado
2014-2017
 Chevrolet SS
1999-2013
 Chevrolet Silverado 1500
2000-2014
 Chevrolet Suburban
2000-2014
 Chevrolet Tahoe
2006-2009
 Chevrolet TrailBlazer
1999-2013
 GMC Sierra
1999-2014
 GMC Yukon
1998-2002
 Pontiac Firebird
2008-2009
 Pontiac G8
2004-2006
 Pontiac GTO

Texas Speed & Performance Banner

ABOUT TEXAS SPEED AND PERFORMANCE

Texas Speed and Performance began as a small business in 2003. Texas Speed and Performance is situated in Georgetown, Texas, and is a leader in the LSx sector. Texas Speed & Performance has quickly established itself as one of the largest performance makers and retailers of premium LSX and LT1 packages in the United States. Texas Speed and Performance founders, Trevor Doelling and Jason Magnum, have a combined 30+ years of experience in the high-efficiency sector and are constantly striving to research and manufacture the highest quality performance goods for your car. This is accomplished by putting their products through their paces on their in-house futuristic super flow engine dyno. Texas Speed and Performance components can be found in some of the fastest street and competition automobiles in the country.

WHY CHOOSE TEXAS SPEED AND PERFORMANCE?

Texas Speed and Performance provides all levels of aftermarket performance products from LSx and 2014+ 6.2L LT1/LT4 performance parts, aftermarket cast cylinder heads, basic air induction exhaust, camshafts, stroker engines and in-house machining of all their engines. They are one of the largest LSx and 2014+ 6.2L LT1/LT4 specific shops in the country. Owing to their in-house cylinder head manufacturing, engine assembly, and camshaft grinding facility, they assist customers with all of their high-performance LSx and 2014+ 6.2L LT1/LT4 needs and requirements.

TEXAS SPEED AND PERFORMANCE PRODUCT LINE

Texas Speed and Performance Exhaust offers camshafts, short and long blocks, turn-key engines, valvetrain, crankshafts, rods, and aftermarket cylinder heads.

VIVID RACING-TEXAS SPEED AND PERFORMANCE

The Texas Speed and Performance products at Vivid Racing include the Texas Speed and Performance Stage 4.2 LS7 Camshaft Chevrolet Camaro, Corvette 2006-2015, which has fitment for the Chevrolet Camaro 2012-2015 and Chevrolet Corvette 2006-2013 models.

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