Name: Manley - Extreme Duty Exhaust Valve for LT1 / LT4 (12349-8) - Gwatney Performance
Brand: Manley Performance
SKU: 12349-8
Price: 482.35 USD
Availability: InStock
Rating: 5.00 (1 reviews)

Manley – Extreme Duty Exhaust Valve for LT1 / LT4 (12349-8)

Rated 5.00 out of 5 based on 1 customer rating

(1 customer review)

$482.35

XH-432 Xtreme Alloy Material
Swirl Polished and Machined
Chrome Stems and Hard Tips
O.E. Style Radius Keeper Grooves

Ships from manufacturer

Description

Exhaust Valves

Type: Exhaust Valve XH-432 Material
Head Diameter: 1.590”
Stem Diameter: 8mm / 0.3136”
Installed Height: Stock
Overall Length: 5.205”
Tip Length: 0.160”
Underhead Angle / Radius: 25° x 7/16”
Margin: 0.075”
Seat Width: 0.100”
Top of Head: 18° Dish
Weight / Grams: 102

Reviews (1)

1 review for Manley – Extreme Duty Exhaust Valve for LT1 / LT4 (12349-8)

5.0

Based on 1 review

5 star	100	100%
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1-1 of 1 review

Sean Stevens
Verified owner

March 31, 2022

Rated 5 out of 5
Exactly what I needed

(0) (0)

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Questions & Answers (3)

Customer questions & answers

This fits on stock lt4 heads? Should I change intake valves too, since I'm going nitrous, I already have Magnuson 2650+ 150shot should be around 1150-1200whp

Q This fits on stock lt4 heads? Should I change intake valves too, since I'm going nitrous, I alrea...... Read more answer now
Asked by Juan on June 16, 2022 4:49 pm

A Yes fits lt4 heads and I'd keep your factory lt4 intake valves

Will These Work On Ported LT4 Heads With Magnuson 2650?

Q Will These Work On Ported LT4 Heads With Magnuson 2650? answer now
Asked by MARIO on March 11, 2022 9:07 pm

A Yes they will

I’m looking for some good valves for my gpi ported lt1 heads

Q I’m looking for some good valves for my gpi ported lt1 heads answer now
Asked by Sonia Avila on December 29, 2021 4:32 pm

A Email [email protected] so we can better assist you in your selection for your application