M20-Engine-Kit5Baby 6 Engine Kits – M20

325i/e, 528e, 525i ≥’91

2900 Sport “I” Engine Kit - 205 HP

ItemPriceCore Deposit
Head, HiFlo ST Sport$2,495$500
Head Gasket, Improved Water Flow$140
Head Bolt Set, 8mm Allen Head Socket$140
Pistons, 2900 Sport, 86mm, Hard Anodized Deep Valve Pockets, 10.0:1 CR$1,500
Rings, Moly 86mm$240
Rods: not provided, factory 2.5i L rodsCall if you want help
Rod Bolt Set$75
Rod Bearing Set$150
Option: Rod Bearing Set, Coated Tri-Metal$270
Main Bearing Set$180
Option*: Main Bearing Set Coated, 360° Oiling Groove$315
*Requires MM to machine the lock-tang grooves
on the Main Bearing Caps
$175
Top End Gasket Set$100
Bottom End Gasket$150
Crankshaft, 81mm Stroke ETA CrankCall

3000 2926cc Sport/Rally Engine Kit - 225 HP

ItemPriceCore Deposit
Head, HiFlo ST Sport$2,495$500
Head Gasket, Improved Water Flow$140
Head Bolt Set, 8mm Allen Head Socket$140
Pistons, 3200 Sport, 86mm,
Hard Anodized 10.0:1 CR
$1,500
Rings, Moly 86mm$240
Rods, “H” Beam 138mm with 4 Oiling Grooves$1,290
Rod Bearing Set, Coated Tri-Metal$270
Main Bearing Set Coated, 360° Oiling Groove$315
*Requires MM to machine the lock-tang grooves
on the Main Bearing Caps
$175
Top End Gasket Set$100
Bottom End Gasket$150
Crankshaft* 84mm StrokeCall
*Crank Seal Spacer, Bolt & Washer, required for Crankshaft$200
*Idler Shaft machined for Crank clearance$100$50
Some block clearancing required for the crankshaft.Call for directions.

325i/e, 528, 525i ≥’91

3200 Sport/Rally Engine Kit - 230 HP

ItemPriceCore Deposit
Head, HiFlo ST Sport$2,495$500
Head Gasket, Improved Water Flow$140
Head Bolt Set, 8mm Allen Head Socket$140
Pistons, 3200 Sport, 86mm
Hard Anodized 10.0:1 CR
$1,500
Rings, Moly 86mm$240
Rods,“H” Beam, 135mm with 4 Oiling Grooves$1,170
Rod Bolt Set$75
Rod Bearing Set, Coated Tri-Metal$270
Option: Rod Bearing Set, STD$150
Main Bearing Set Coated, 360° Oiling Groove$315
*Requires MM to machine the lock-tang grooves
on the Main Bearing Caps
$175
Top End Gasket Set$100
Bottom End Gasket$150
Crankshaft**, 89.6mm StrokeCall
*Crank Seal Spacer, Bolt & Washer, required for Crankshaft$200
*Idler Shaft machined for Crank clearance$100$50
Some block clearancing required for the crankshaft.Call for directions.

3200 Rally Engine Kit - 240 HP

ItemPriceCore Deposit
Head, HiFlo ST Rally$2,695$500
Head Gasket, Improved Water Flow$140
Head Bolt Set, 8mm Allen Head Socket$140
Pistons, 3200 Rally, 86mm
Hard Anodized 11.0:1 CR
$1,500
Rings, Moly 86mm$240
Rods, “H” Beam 138mm with 4 Oiling Grooves$1,170
Rod Bearing Set, Coated Tri-Metal$270
Main Bearing Set Coated, 360° Oiling Groove$315
*Requires MM to machine the lock-tang grooves
on the Main Bearing Caps
$175
Top End Gasket Set$100
Bottom End Gasket$150
Crankshaft**, 89.6mm StrokeCall
*Crank Seal Spacer, Bolt & Washer, required for Crankshaft$200
*Idler Shaft machined for Crank clearance$100$50
Some block clearancing required for the crankshaft.Call for directions.