Edelbrock 60449 Performer RPM Aluminum Cylinder Head Big Block Chevy

Designed for big-block Chevy 396-502 c.i.d. engines, these oval port heads will support over 540 horsepower with 9.5:1 compression when used as part of the Performer RPM Power Package. A totally unique intake port design yields flow numbers traditionally associated with high performance rectangular port heads, but with the smaller runner size and velocity of an oval port for excellent seat-of-the-pants performance and crisp throttle response. The semi-open chamber design maximizes combustion efficiency with streetable compression ratios. The stainless steel 2.19'' intake and 1.88'' exhaust valves have smaller-than-stock 11/32'' valve stems to promote excellent flow and lighter valve weight. The deck surface and water jackets were specially designed to work with all big-block Chevrolet engine blocks. Heads include top-quality ARP rocker studs, bronze guides and hardened, ductile iron valve seats.

Tech Tip: To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs such as the RC12YC (P/N 192-49776). They are 0.230'' shorter than a conventional spark plug and have a 5/8'' hex for easier access.

Valve LiftIntakeExhaust.100''7471.200''143128.300''207153.400''250178.500''284200.600''309218.700''N/AN/AFlow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28'' H2O

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

For shipments to Ohio addresses, we are required by State law to collect Sales Tax. 

CONTACT ADDRESS

JEGS High Performance

101 Jeg's Place

Delaware, Ohio 43015

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

For shipments to Ohio addresses, we are required by State law to collect Sales Tax. 

CONTACT ADDRESS

JEGS High Performance

101 Jeg's Place

Delaware, Ohio 43015

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

For shipments to Ohio addresses, we are required by State law to collect Sales Tax. 

CONTACT ADDRESS

JEGS High Performance

101 Jeg's Place

Delaware, Ohio 43015

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

CONTACT ADDRESS

JEGS High Performance

101 Jeg's Place

Delaware, Ohio 43015

SALES TAX

For shipments to Ohio addresses, we are required by State law to collect Sales Tax. 

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. 

CONTACT ADDRESS

JEGS High Performance

101 Jeg's Place

Delaware, Ohio 43015

SALES TAX

For shipments to Ohio addresses, we are required by State law to collect Sales Tax. 

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. 

CONTACT ADDRESS

JEGS High Performance

101 Jeg's Place

Delaware, Ohio 43015

SALES TAX

For shipments to Ohio addresses, we are required by State law to collect Sales Tax. 

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

CONTACT ADDRESS

JEGS High Performance

101 Jeg's Place

Delaware, Ohio 43015

SALES TAX

For shipments to Ohio addresses, we are required by State law to collect Sales Tax. 

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.