Patrol 4.2L 4.5L

Nissan - 4.2L TB42 & 4.5L TB45
Performance level - Stage 2 - Forced Induction Special - Performance oriented street, use with turbo, supercharger and/or nitrous. Will work with stock springs and ECU.
INT/EXH - Dur @ .050” Lift: 228°/228° RR: 1.5/1.5 Gross Lift: .464”/.464” LSA: 112° RPM: 1000 to 6500 Redline: 7000 Learn More

Nissan - 4.2L TB42 & 4.5L TB45
Performance level - Stage 1 - Hotter than stock profile. Smooth idle quality and will work with stock valve springs. No ECU upgrade required.
INT/EXH - Dur @ .050” Lift: 220°/220° RR: 1.5/1.5 Gross Lift: .445”/.445” LSA: 112° RPM: Idle to 6000 Redline: 6500 Learn More

Nissan - 4.2L TB42 & 4.5L TB45
Performance level 5 - Stage 4 - Full Race - Emphasis on top end power with extremely rough idle quality. Not recommended for daily driver. Spring/ECU upgrade req.
INT/EXH - Dur @ .050” Lift: 256°/256° RR: 1.5/1.5 Gross Lift: .526”/.526” LSA: 108° RPM: 1300 to 7500 Redline: 8000 Learn More

Nissan - 4.2L TB42 & 4.5L TB45
Performance level 4 - Stage 3 - 3⁄4 Race - Road/Rally and Street/Strip. Requires spring change (#68147) and ECU upgrade to take advantage of higher rpm potential.
INT/EXH - Dur @ .050” Lift: 248°/248° RR: 1.5/1.5 Gross Lift: .507”/.507” LSA: 110° RPM: 1200 to 7250 Redline: 7750 Learn More

Nissan - 4.2L TB42 & 4.5L TB45
Performance level - Stage 2 - Recommend for hot street use. Rough idle is expected. Requires spring change (#68147). Lope at idle is common.
INT/EXH - Dur @ .050” Lift: 235°/235° RR: 1.5/1.5 Gross Lift: .500”/.500” LSA: 112° RPM: 1100 to 7000 Redline: 7500 Learn More