Heavy Duty Valve Springs Set 4JJ1/4JK1/4JJ3/1KD/2KD/1GD/2GD Duramax LVN/LKH 2.5L & LWH/LWN 2.8L MRX Engine Model:4JJ1/4JK1 Spec: 6/6 Blade 48mm CW

Spec: 6/6 Blade 48mm CW - 11Blade TW-  standard medium rear housing

Tech Supports Available with Diesel Performance Parts

Spec- 42mm CW - 42mm TW

Note: If coming from Thailand Stock ETA 2-3 week

The Bottom of the manifold have a opening for external gate setup as well

Heavy Duty Valve Springs Set 4JJ1/4JK1/4JJ3/1KD/2KD/1GD/2GD Duramax LVN/LKH 2.5L & LWH/LWN 2.8L MRX Engine Model:4JJ1/4JK1 Spec: 6/6 Blade 48mm CWMRX Heavy duty upgrade valve spring Set Available Model: 4JJ1 4JK1 4JJ3 RZ4E Duramax LVN LKH 2. 5L & LWH LWN 2. 8L 1GD 2GD 1KD 2KD Brand: MRX THA Stock Note: Coming from Thailand store ETA Estimate time of arrival can take 2 3Week