

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B7820H |
4B7820HX |
|
| Sizes | STD, .25, .50 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.8898 in / 48.000 mm |
|
| Max Std Shaft Size | 1.8905 in / 48.020 mm | |
| Min Std Tunnel Size | 2.0310 in / 51.587 mm | |
| Max Std Tunnel Size | 2.0315 in / 51.600 mm | |
| Max Wall at Crown | 0.0696 in / 1.768 mm | 0.0691 in / 1.755 mm |
| Max Overall Length |
0.807 in / 20.50 mm |
|
| Notes | ||
|
Diagram |
|
|

Part number 7M5532H-STD
ACL Race Series main bearings
Audi / VW - 2.8 2.9 3.2 3.6 VR6 R32 R36 (BUB, BHK, AES, AUE, ABV, AAA, AMY)

|
Product detailed specification |
|
|
Bore size |
86.50mm |
|
Stroke |
85.80mm |
|
JE Pistons compression ratio (CR) |
11.5:1 |
|
OEM compression ratio (CR) |
10.8:1 |
|
Dome volume (CC) |
-7.80cm3 |
|
Compression height (CH) |
31.62mm |
|
Pin diameter |
21mm |
|
Features |
FSR series skirt |
|
Fits for |
BMW M3 E36 S50B30 Euro |

Part number GDE-VW8V-7A
Supertech valve guide
Material: Manganese Bronze
Outer diameter: 12.06mm
For 7mm valves
Audi / VW 1.8 16V (KR, PL, ABF, 9A, ACE), 2.2 20V (3B, AAN, ABY, ADU, 7A)



Length: 2024mm
Width: 30mm
Number of tooth: 253
Gates' timing belts offer a precision fit with easy installation and no interference engine damage - exactly what you've come to expect from the worldwide leader in timing belts.
- Tensile cord reinforced with premium, high-strength glass cords.
- Gripping teeth with aramid fiber technology and high saturation HNBR elastomeric composites for exceptional durability and heat resistance.
- Wear-resistant tooth jacket supported by reinforced nylon fabric and double-tooth stability.
The superior construction of Gates timing belts makes them 300 percent stronger than the standard aftermarket belt while providing up to three times the heat resistance.

Crankshaft gear info:
• This reinforced crankshaft gear has been manufactured specifically for uprated turbo engines, where the original crankshaft gear not withstand the loads
• OEM part number: 034105263A
• Material: 42CrMo4

Part number: FCPPB840090M50
Manufacturer: FCP Engineering
Forged high performance pistons for various applications in nearly all engine types for racing and street use.
Made of 4032-T6, piston skirt is molibden coated.
Each set of pistons also includes rings and HD series pins.
Bore size: 84.00mm
Compression ratio (CR): 9.0:1
Compression height: 32.50 mm
Pin diameter: 22mm
Stroke: 84.00mm
BMW 328 528 Turbo (M50B28, M52B28)
Connecting rod length must be 135mm
These pistons are for stroked BMW 2.8 engine M50B25 with M52B28 crank!

|
Product detailed specification |
|
|
Bore size |
85.50mm |
|
Stroke |
88.00mm |
|
JE Pistons compression ratio (CR) |
9.0:1 |
|
OEM compression ratio (CR) |
8.3:1 |
|
Dome volume (CC) |
-13.30cm3 |
|
Compression height (CH) |
34.70mm |
|
Pin diameter |
22mm |
|
Features |
Accepts Turbo and Nitrous; asymmetrical FSR series |
|
Fits for |
Mitsubishi EVO 8-9 - 2.0 16V (4G63) |