Standard size for E7TE heads; often the first part replaced for better flow. TREMEC Magnum XL Upgrade
Specifically tuned for 2005–2014 GT models with increased power. If you're looking into these for a specific project, FORD MUSTANG 1.46
On E7TE cylinder heads , which were factory-standard on 5.0L Fox Body Mustangs from 1987 to 1993, the exhaust valve measures 1.46 inches . Upgrading these heads is a common modification for enthusiasts seeking better airflow and horsepower. Standard size for E7TE heads; often the first
A 2024 Mustang GT equipped with a Steeda Stop the Hop Starter Kit achieved a solid 1.46-second 60-foot time during drag racing tests. This is a critical measurement of off-the-line traction and acceleration. Upgrading these heads is a common modification for
tips to hit that 1.46-second 60-foot mark. Head porting advice for the Fox Body 5.0L engine.
In the context of the Ford Mustang, the value primarily refers to high-performance mechanical specifications and racing metrics:
For Mustangs upgraded with a TREMEC Magnum XL 6-speed transmission , the third gear ratio is exactly 1.46 . This ratio is part of a high-torque capacity setup (rated at 700 ft-lb) designed for the S197 and S550 generations to replace the weaker stock MT82 transmission. Technical Breakdown of "1.46" Specifications Mustang Application Significance 60-Foot Time 2024+ S650 GT (Modified) Benchmark for improved rear suspension and launch traction. Exhaust Valve 1987–1993 Fox Body (5.0L)