---
title: How Do I Identify and Service a Discontinued BluePrint Engines BP3310CT Engine?
description: Service information for discontinued BluePrint BP3310CT 331 Ford stroker, including gasket numbers, seals, specifications, torque values, and parts.
---

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# How Do I Identify and Service a Discontinued BluePrint Engines BP3310CT Engine?

 What Is the BP3310CT Engine? The **BP3310CT** is a **331 cubic inch Small Block Ford stroker engine** built from a roller-cam 302 platform. Key features include:

- 331 cubic inch displacement
- .040" overbore
- Hydraulic roller camshaft
- Cast steel crankshaft
- Hypereutectic pistons
- Iron E7TE cylinder heads
- One-piece rear main seal
- Side-mounted dipstick
- Aluminum intake manifold
- Dual-sump oil pan
- 28 oz externally balanced rotating assembly

 How Can I Identify a BP3310CT Engine? Look for the following identifiers:

- Roller block with lifter valley spider mounting holes
- One-piece rear main seal block
- Side-mounted dipstick
- E7TE iron cylinder heads
- 4.040" bore size
- Cast steel crankshaft
- Hydraulic roller camshaft

 What Cylinder Heads Were Used?

### Cylinder Heads

**HP3084** Specifications:

- Iron E7TE heads only
- Factory pedestal mount rocker system
- Hydraulic roller valvetrain

 What Gaskets Are Used on the BP3310CT?

### Complete Gasket Set

**FELEIS3643**  
**FDM260-1125**

### Head Gaskets

**FEL9333PT-1**

### Intake Gaskets

 Included in gasket set.

### Timing Cover Seal

 Included in gasket set.

### Rear Main Seal

- **CO17054**
- **UNV4686**
- **EGTS4686**
- **MUSJV523B25**
- **FELBS40620**
- **SEA68102**

 What Pistons and Rings Were Used?

### Pistons

**KB355** Specifications:

- 10cc dished piston
- Hypereutectic construction

### Rings

**HAS2M5523** Specifications:

- .040" over bore
- Top ring gap: **.032"-.034"**

 What Crankshaft and Rods Were Used?

### Crankshaft

**SCAT 9-302-3250-5400-2123** Features:

- Cast steel construction
- 28 oz external balance front and rear

### Connecting Rods

- **SCAT 2-1CR5400-927**
- **YFICR5400B**

 Rod bolt torque:

- **47 ft-lbs**

 What Bearings Were Used?

### Main Bearings

**FDM4125MA**

- Standard size only
- Contoured thrust bearing design

### Rod Bearings

**MC8CB634P**

- Standard size only

 What Oil Pump and Pickup Were Used?

### Oil Pump

- **MAPM68HV**
- **MC601-1103**

### Pickup Screen

- **MAP 68-S4**
- **MC601-1570**

 Pickup bolt torque:

- **15 ft-lbs**

 What Timing Components Were Used?

### Timing Set

 Primary: **SA73004-3** Alternate: **C3057X**

### Camshaft Installation Requirement

 The camshaft must be installed and verified at: **108° Intake Centerline (ICL)** Do not rely solely on timing marks. Degreeing the camshaft is required during assembly. What Intake Manifold Was Used?

### Intake Manifold

**Professional Products 54001** Also referenced as: **BK3212** What Oil Pan and Valve Covers Were Used?

### Oil Pan

- **SEA6540**
- **GRAG9754U**

### Valve Covers

- **SEA6512CP**
- **GAG9237**

 Additional hardware:

- **SEA6507 (2)**
- **SEATW7200 (1)**

 What Torque Specifications Are Commonly Needed?

| Component | Torque |
| --- | --- |
| Main Caps | 60-70 ft-lbs |
| Connecting Rods | 47 ft-lbs |
| Cylinder Heads | 65 ft-lbs |
| Rocker Arms | 25 ft-lbs |
| Intake Manifold | 15 ft-lbs |
| Oil Pump Bolts | 35 ft-lbs |
| Timing Cover Bolts | 15 ft-lbs |
| Valve Covers | 10 ft-lbs |

 Frequently Asked Questions

### Is the BP3310CT internally balanced?

**No.** The BP3310CT uses **28 oz external balancing** on both the front and rear of the engine.

### What head gasket does the BP3310CT use?

**FEL9333PT-1**

### What complete gasket set does the BP3310CT use?

**FELEIS3643** or **FDM260-1125**

### What rear main seal does the BP3310CT use?

- CO17054
- UNV4686
- EGTS4686
- MUSJV523B25
- FELBS40620
- SEA68102

### What bore size does the engine use?

**4.040 inches (.040 over).**

### What camshaft timing specification is required?

**108° Intake Centerline (ICL).**

### What cylinder heads were originally installed?

**Iron E7TE heads (HP3084).**

### Does the engine use a roller camshaft?

**Yes.** The BP3310CT is built on a roller-cam Small Block Ford block. 

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