Olds 374 Flat Top -1.44cc All 6 deg Olds 4.125 bore, 3.500 stroke, 6.000 rod (CP Bullets BO7010-068)
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|
Make |
Oldsmobile |
|
Engine Type |
Oldsmobile |
|
Part Number |
BO7010-068 |
|
Bore (in) |
4.125 |
|
Stroke (in) |
3.5 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.55 |
|
Head Type |
Stock / Edel |
|
Head CC |
80 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-1.4 |
|
Compression Ratio |
9.5 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.075 / -.075 |
|
Cubic Inch |
374 |
|
Piston Weight |
509 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Olds 374 Flat Top -1.44cc All 6 deg Olds 4.125 bore, 3.500 stroke, 6.000 rod (CP Bullets BO7010-068) |
|---|---|
| Brands | CP Carrillo |
| Engine | Olds |
| Make | Olds |
Delivery & Freight
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What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What are the recommended bore and stroke specifications for the BO7010-068 pistons?
The BO7010-068 pistons are designed for a 4.125-inch bore and a 3.500-inch stroke, making them suitable for the Oldsmobile 374 engine.
What is the compression ratio achieved with the BO7010-068 pistons?
These pistons provide a compression ratio of 9.5:1 when used with an 80cc head, which is typical for stock or Edelbrock heads.
What is the weight of the BO7010-068 pistons and how does it affect engine performance?
The BO7010-068 pistons weigh 509 grams each. While this weight is manageable for performance applications, it's important to consider the overall rotating assembly balance for optimal engine performance.
What type of valve reliefs do the BO7010-068 pistons have?
The BO7010-068 pistons feature two valve reliefs, which help accommodate the valve train of the Oldsmobile engine while maintaining performance.
Are there any specific machining requirements for the BO7010-068 pistons?
Yes, ensure that the pistons are fitted with the correct bore clearance and that the ring gaps are set according to your engine's specifications. Proper machining is crucial for reliability and performance.
