---
title: PS4541CT1 Series
description: GM Small Block Compatible 454 c.i. ProSeries Engine - 563 Horsepower
---

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# PS4541CT1 Series

## Horsepower & Torque: 563 Horsepower / 545 ft. lbs. Torque Cylinder Heads: BluePrint Engines Aluminum Cylinder Heads Compression Ratio: 10.5:1 Camshaft: Hydraulic Roller Cam - .638 Intake / .622 Exhaust Lift and 251 Intake / 259 Exhaust Duration @.050-114° LSA Pistons: Forged Crankshaft: Forged Steel Crank - 4.000" Stroke and 6.000" Rods Fuel Recommendation: 91+ Octane

#### Description:

- Horsepower & Torque: 563 Horsepower / 545 ft. lbs. Torque
- Compression Ratio: 10.5:1
- BluePrint Engines Aluminum Heads
- BluePrint Engines Hydraulic Roller Cam
- BluePrint Engines Forged Crank
- BluePrint Engines Forged Pistons

#### Block:

- BluePrint Engines High Strength Cast Iron Block
- Manufactured and Machined in the USA!
- Drilled and Tapped for Clutch Linkage
- Mech Fuel Pump Provision: Yes
- Passenger Side Dipstick
- 1-Piece Rear Main Seal
- 4-Bolt Main
- 4.250" Bore

#### Rotating Assembly:

- BluePrint Forged Crankshaft
- 4.000" Stroke
- Forged 6.000" Connecting Rods
- Forged Pistons
- Internally Balanced Front and Rear

#### Cylinder Heads:

- BluePrint Aluminum Cylinder Heads - [HP8103](https://blueprintengines.com/collections/cylinder-heads/products/sb-chevy-aluminum-cylinder-head-220cc-assembled-hp8103)
- 64cc Chamber
- 2.08" Intake / 1.60" Exhaust Valves
- 220cc Intake / 67cc Exhaust Runners

#### Cam Specs:

- Hydraulic Roller
- .638 Intake / .622 Exhaust Lift
- 251 Intake / 259 Exhaust Duration
- @.050-114 Degree Lobe Separation

#### Also Includes:

- Valve Covers - [BPP9518](https://blueprintengines.com/products/blueprint-engines-small-block-chevy-valve-cover-kit?_pos=1&_psq=BPP9518&_ss=e&_v=1.0)
- Harmonic Balancer
- Timing Cover
- Oil Pan

 

Engine Accessory Specifications

*Your BluePrint engine was dyno tested with the parts and specifications listed below. If you prefer to install a different part, your engine may not produce the horsepower recorded on your dyno sheet.*

**Part Number:** PS4541CT

**Fuel Delivery Type:** 950 CFM Carbureted

**Spark Plug:** [BPP7938 NGK 7938 BKR5E](https://blueprintengines.com/products/bpp7938-ngk-7938-bkr5e-spark-plugs-set-of-8)(.750-inch reach, 14mm thread, 5/8 hex, plug)

**Spark Plug Gap:** .035"

**Harmonic Balancer:** Non-Weighted

**Flexplate/Flywheel:** Non-Weighted

**Stall Converter:** 2200+

**Intake Manifold:** Single Plane, Satin Aluminum

**Fuel Recommendation:** 91+ Octane

**Timing (Initial/Total Advance):** Initial Timing - 10-16° and Total Timing 32-34°

**Firing Order:** 1,8,4,3,6,5,7,2

**Recommended Break in Oil:** [**BPP710 (Click Here)**](https://blueprintengines.com/products/blueprint-engines-crate-engine-break-in-oil-1-quart-bpp710)

**Recommended Service Oil:** [**BPP10W30 (Click Here)**](https://blueprintengines.com/products/blueprint-engines-10w30-engine-oil-1-quart-bpp10w30)

**Recommended Oil Filter:** [**BPP51061 (Click Here)**](https://blueprintengines.com/products/sbc-bbc-oil-filter-bpp51061)

**Total Oil Capacity with Production Oil Pan, and Filter**: 5 Quarts

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