Precision Performance Engines

10/24/2026

LS/L8T Hybrid Sleeved 419ci for sale! $9500

Shop Inventory! 2 available!

419ci (Big Bore) LC9 siamese bore aluminum block 4.155” bore
PowerBore Ductile Iron Performance Fl**ge Sleeves
BRAND New GM L8T CCW CRANK 58x
Custom Molnar power adder rods w/ arp2000
CP -5cc Flat top 2618 forged pistons with performance rings.
Gapped for boost .030 top ring .032 second ring
The following services were completed in our machine shop:

Jet wash
Doweled Main caps
1/2” head stud conversion w/ fasteners
Bake/shot peen
CNC Sleeve Service to blueprint specs
Line hone
CNC Hone w/ torque plates
Lifter bores burnished
CNC DOD towers threaded and plugged
Balanced under 2 gram-inches
CNC decked in our 4th axis fixture to true crankshaft centerline.
oil valley, and oil pan rails are machined flat as well
Mains are at .0025” clearance
Rods are .0028” oil clearance
ACL main bearings
ACL rod bearings
Durabond performance cam bearings
Freeze plugs, deburred, and final cleaned
ARP main studs
1500+ capacity

Shipping $350 to terminal for pickup

10/21/2026

Hoping everyone is staying safe. Thank you all for reaching out as this was directly next door to our facility. We all were at home with our families during the time and safe

10/18/2026

11 degree LS3 6 Bolt head with 2.200” intake valves coming in hot! I swear this machine doesn’t shut off

10/17/2026

We get told a lot our leads time are impressive. Our team here actually enjoys coming to work and puts out incredible work. Even on a Saturday afternoon!

10/17/2026

10/16/2026

LS Sleeved 427 for sale! $8,000

Shop Inventory #145

427ci (Big Bore) LC9 siamese bore aluminum block 4.125” bore
PowerBore Ductile Iron Performance Fl**ge Sleeves
4340 Forged K1 crank with 4.00” stroke 58x wheel
Molnar power adder rods w/ arp2000
CP -5cc Flst top 2618 forged pistons with performance rings.
Gapped for boost .028” top ring .030 second ring
The following services were completed in our machine shop:

Jet wash
Bake/shot peen
CNC Sleeve Service to blueprint specs
Line hone
CNC Hone w/ torque plates
Lifter bores burnished
CNC DOD towers threaded and plugged
Balanced under 2 gram-inches
CNC decked in our 4th axis fixture to true crankshaft centerline.
oil valley, and oil pan rails are machined flat as well
Mains are at .0025” clearance
Rods are .0028” oil clearance
ACL main bearings
ACL rod bearings
Durabond performance cam bearings
Freeze plugs, deburred, and final cleaned
ARP main studs
1300hp capacity

Shipping $350 to terminal for pickup

10/09/2026

2027 champ endurance races incoming ✅

10/08/2026

LS Sleeved 427 for sale! $8,000

Shop Inventory #144

427ci (Big Bore) LC9 siamese bore aluminum block 4.125” bore
PowerBore Ductile Iron Performance Fl**ge Sleeves
4340 Forged K1 crank with 4.00” stroke 24x wheel
Molnar power adder rods w/ arp2000
Mahle -20cc dished 2618 forged pistons with performance rings.
Gapped for boost .028” top ring .030 second ring
The following services were completed in our machine shop:

Jet wash
Shot Peen
CNC Sleeve Service to blueprint specs
Line hone
CNC Hone w/ torque plates
Lifter bores burnished
CNC DOD towers threaded and plugged
Balanced under 2 gram-inches
CNC decked in our 4th axis fixture to true crankshaft centerline.
oil valley, and oil pan rails are machined flat as well
Mains are at .0025” clearance
Rods are .0028” oil clearance
ACL main bearings
ACL rod bearings
Durabond performance cam bearings
Freeze plugs, deburred, and final cleaned
ARP main studs
1300hp capacity

Shipping $350 to terminal for pickup

10/07/2026

-SOLD-

NEW LSX 427 for sale! $10,500.00

THESE DONT LAST LONG

Shop Inventory #155

Buyer gets access to over 30+ pictures/videos documenting the entire build!

427ci LSX CAST IRON block 4.125” bore
Callies Compstar 8CCW 58x with 4.00” stroke
Callies extreme 1600hp rods arp2000
CP flat top -4.6cc 2618 forged pistons with performance rings.
Gapped for boost .030 top ring .032 second ring
The following services were completed in our machine shop:

Jet wash
Shot Peen
CNC bore to blueprint specs
Line hone with arp main studs
CNC Hone w/ torque plates
Lifter bores burnished
CNC DOD towers threaded and plugged
Balanced under 2 gram-inches
CNC decked in our 4th axis fixture to true crankshaft centerline.
oil valley, and oil pan rails are machined flat as well
Mains are at .0025” clearance
Rods are .0028” oil clearance
ACL main bearings
ACL rod bearings
Durabond performance cam bearings
Freeze plugs, deburred, and final cleaned
ARP main studs
1600 HP capacity

Shipping $350 to terminal for pickup