Cast Aluminum Cylinder HeadBig Block Chevy 396 w/Hydraulic Flat Tappet CamAssembled Head119cc Combustion Chamber305cc Intake RunnerIncludes Valves & SpringsPort Dimensions: Int 2.5x1.77, Ex 2.05x1.82Set of 2 Special Note: Camshaft and Lifters Not IncludedIntake Runner: 305ccCombustion Chamber Volume: 119ccIntake Valve: 2.250"Exhaust Valve: 1.880"Max Lift: .550"Coil Bind: .740"Intake Install: 130 lbs @ 1.8Exhaust Install: 130 lbs @ 1.8Closed Seat Pressure: 110 lbsOpen Seat Pressure: 300 lbs Installation Requirements:746-PCE279.1008 Head Bolt
Speedmaster PCE281.2034 Big Block Chevy 396 Aluminum Cylinder Heads 305cc / 119c

Cast Aluminum Cylinder Head
  • Big Block Chevy 396 w/Hydraulic Flat Tappet Cam
  • Assembled Head
  • 119cc Combustion Chamber
  • 305cc Intake Runner
  • Includes Valves & Springs
  • Port Dimensions: Int 2.5x1.77, Ex 2.05x1.82
  • Set of 2

    Special Note: Camshaft and Lifters Not Included

  • Intake Runner: 305cc
  • Combustion Chamber Volume: 119cc
  • Intake Valve: 2.250"
  • Exhaust Valve: 1.880"
  • Max Lift: .550"
  • Coil Bind: .740"
  • Intake Install: 130 lbs @ 1.8
  • Exhaust Install: 130 lbs @ 1.8
  • Closed Seat Pressure: 110 lbs
  • Open Seat Pressure: 300 lbs Installation Requirements:
  • 746-PCE279.1008 Head Bolt Kit
  • 746-PCE254.1038 Intake Pushrod Set
  • 746-PCE254.1044 Exhaust Pushrod Set
  • Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    SALES TAX

    Taxes may be applicable at checkout 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    SALES TAX

    Taxes may be applicable at checkout 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SALES TAX

    Taxes may be applicable at checkout 

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SALES TAX

    Taxes may be applicable at checkout 

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    SALES TAX

    Taxes may be applicable at checkout 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    SALES TAX

    Taxes may be applicable at checkout 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SALES TAX

    Taxes may be applicable at checkout. 

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov