
|
Part number starting with 330 |
|
|
Athena advantages |
|
|
Reinforced material |
Asbestos free composite raw material OE approved |
|
Stainless steel ring (AISI304) |
Separate stainless steel rings assure maximum sealing around cylinder bore also on NOS and/or turbo charged engine where boost is over 2 bars. No head and block machining required |
|
Silicon beading |
Silicon-based beading is applied on critical areas to improve sealing around all cooling water and oil passages |

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1956H |
4B1956HX |
|
| Sizes | STD, 025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.7709in / 44.98mm |
|
| Max Std Shaft Size |
1.7717in / 45mm |
|
| Min Std Tunnel Size |
1.8898in / 48mm |
|
| Max Std Tunnel Size |
1.8906in / 48.02mm |
|
| Max Wall at Crown |
0.0592in / 1.504mm |
0.0587in /1.491 mm |
| Max Overall Length |
0.7283in / 18.5mm |
|
| Notes | ||
|
Diagram |
![]() |
|




|
Product detailed specification |
|
|
Bore size |
84.00mm |
|
Stroke |
89.60mm |
|
JE Pistons compression ratio (CR) |
9.5:1 |
|
OEM compression ratio (CR) |
10.2:1 |
|
Dome volume (CC) |
-21.3cm3 |
|
Compression height (CH) |
31.60mm |
|
Pin diameter |
22mm |
|
Features |
Accepts Turbo and Nitrous; Ultra series |
|
Fits for |
BMW - 3.0 24V Turbo (N54B30) |





|
Part number starting with 330 |
|
|
Athena advantages |
|
|
Reinforced material |
Asbestos free composite raw material OE approved |
|
Stainless steel ring (AISI304) |
Separate stainless steel rings assure maximum sealing around cylinder bore also on NOS and/or turbo charged engine where boost is over 2 bars. No head and block machining required |
|
Silicon beading |
Silicon-based beading is applied on critical areas to improve sealing around all cooling water and oil passages |


|
Product detailed specification |
|
|
Model number |
TEVN-1018 |
|
Head diameter |
27.00mm |
|
Stem diameter |
4.97mm |
|
Length |
108.40mm |
|
Material |
Black nitrided stainless steel |
|
Fits for |
Toyota Silver / Black Top 20V - 4AGE |

Upper | Lower | Quantity | Position | Crankshaft | Housing | Max Length | Max Wall |
|---|---|---|---|---|---|---|---|
SV ![]() |
SV ![]() |
8 | 53.99 / 53.97 | 57.61 / 57.60 | 14.8 | 1.796 |


