CHEVROLET TRAILBLAZER Chevrolet Performance Engines & Components

Connecting Rod Bolt, Steel, 12mm Hex Head, 9mm x 1.00, 1.654 in. Underhead Length, Gen IV LS Engine, Chevy, Each

Part Number: NAL-11570662

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 9/29/2025

Harmonic Balancer Bolt, Gen. 3 and 4 LS engines only. Steel, Cadmium, Hex Head, Chevy, 4.8, 5.3, 5.7, 6.0, 6.2L Each

Part Number: NAL-12557840

4.96 out of 5 stars ( 53 )

Estimated Ship Date: Monday 9/29/2025

Main Bolts, Outer Bolts, With Windage Tray, Chevy, LS, Each

Part Number: NAL-12560273

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/29/2025

Main Bolts, 6-Bolt Main, Inner Bolts, Chevy, 4.8, 5.3, 5.7, 6.0L, Each

Part Number: NAL-12560272

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/29/2025

Valve Cover Bolts, Steel, Chevy Small Block, L92, Each

Part Number: NAL-12577215

4.87 out of 5 stars ( 15 )

Estimated Ship Date: Monday 9/29/2025

Valve Spring Retainers, Steel, Stock, Each

Part Number: NAL-10166344

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/29/2025

Cylinder Head Dowel Pin, Chevy, Small Block, LS Engines, Each

Part Number: NAL-12570326

4.83 out of 5 stars ( 18 )

Estimated Ship Date: Monday 9/29/2025

Crankshaft Key, Long Type, 0 degree Offset, Steel, Natural, Chevy, Each

Part Number: NAL-12561513

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 9/29/2025

Oil Pan Bolt, Steel, Gold Iridite, GM, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0L, Each

Part Number: NAL-12554990

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 9/29/2025

Valve Spring, LS6 Style,.550 Max lift, Single Beehive, 1.290 in. o.d., 375 lbs./in. Spring Rate, 1.800 in. Installed Height, Each

Part Number: NAL-12713265

Not Yet Reviewed

Estimated Ship Date: Monday 9/29/2025

Bolt, Oil Pan, Front Cover, Oil Pump, Hex-Head, Steel, Natural, Chevy, LS, Each

Part Number: NAL-11515758

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/29/2025

Valve Lock, 7 degree, Stamped Steel, 1-groove Beadlock-style, 8mm Stem Diameter, Each

Part Number: NAL-10166345

Not Yet Reviewed

Estimated Ship Date: Monday 9/29/2025

Engine Expansion Plug, Brass, Buick, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Pontiac, Saab, Saturn, Each

Part Number: NAL-9427693

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/29/2025

Dowel Pin, Camshaft Dowel Pin, Each

Part Number: NAL-12554553

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/29/2025

Head Bolt, 11mm, Hex, Cadillac, Chevy, Small Block Chevy, LS, Each

Part Number: NAL-19258707

Not Yet Reviewed

Estimated Ship Date: Monday 9/29/2025

Valve Spring, L76/L92 Style,.520 Max lift, Single Beehive, 1.290 in. o.d., 1.230 in. Coil Bind, 1.800 in. Installed Height, Each

Part Number: NAL-12706568

Not Yet Reviewed

Estimated Ship Date: Monday 9/29/2025

Head Bolt, 8mm, Hex, Cadillac, Chevy, GMC, Hummer, Pontiac, Saab, Small Block Chevy, LS, Each

Part Number: NAL-12558840

Not Yet Reviewed

Estimated Ship Date: Monday 9/29/2025

Bolt, LS Engine Coolant Plug Fastener, 6mm x 1.0 Thread, Hex, Steel, Chevrolet, Pontiac, Each

Part Number: NAL-11588714

Not Yet Reviewed

Estimated Ship Date: Monday 9/29/2025

Valve Lock, Replacement, 0.185 in. Stem Diameter, Stock Style Lock, 2-Groove, Steel, Buick, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Pontiac, Each

Part Number: NAL-90354648

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/29/2025

Valve Spring Retainer, Replacement, OEM Style, Steel, Standard, 0.732 in. OD, 0.299 in. ID, 0.059 in. Thick, Buick, Cadillac, Chevy, GMC, Hummer, Each

Part Number: NAL-12575196

Not Yet Reviewed

Estimated Ship Date: Monday 9/29/2025

filter

Part Number: NAL-12731179

Not Yet Reviewed

Estimated Ship Date: Monday 9/29/2025

FILTER

Part Number: NAL-12585328

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

• Drop Ship
• Special Order

Oil Pan Drain Plugs

Part Number: NAL-11562588

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

• Drop Ship
• Special Order

BOLT-TENSIONER TO BRACKET

Part Number: NAL-11588726

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

• Drop Ship
• Special Order

VALVE ASM

Part Number: NAL-25014006

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

• Drop Ship
• Special Order