Description

Big Mutha' Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit1958-1998 Chevy Small Block Engines 262-400 ci.Lift: .500 in./.486 in.Duration @ .050 in: 243/257RPM Range: 2500-6400Lobe Separation: 107Usage: Street/Strip Comp Cams CL12-602-4 Big Mutha' Thumpr Hydraulic Flat Tappet Cam and Lifter Kit: Very rough, lopey idle Long exhaust duration produces a powerful hard-hitting exhaust note Excellent horsepower gains and broad torque curve Grind Number: 295TH7 Cam Type: Hydraulic Flat Tappet Lifter Style: Hydraulic Flat Tappet Advertised Intake Duration: 295 Advertised Exhaust Duration: 313 Intake Duration at .050 in. Lift: 243 Exhaust COMP Cams CL12-602-4 Big Mutha' Thumpr Hydraulic Flat Tappet Camshaft and Lifter Big Mutha' Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit 1958-1998 Chevy Small Block Engines 262-400 ci. Lift: .500 in./.486 in. Duration @ .050 in: 243/257 RPM Range: 2500-6400 Lobe Separation: 107 Usage: Street/Strip Comp Cams CL12-602-4 Big Mutha' Thumpr Hydraulic Flat Tappet Cam and Lifter Kit: Very rough, lopey idle Long exhaust duration produces a powerful hard-hitting exhaust note Excellent horsepower gains and broad torque curve Grind Number: 295TH7 Cam Type: Hydraulic Flat Tappet Lifter Style: Hydraulic Flat Tappet Advertised Intake Duration: 295 Advertised Exhaust Duration: 313 Intake Duration at .050 in. Lift: 243 Exhaust Duration at .050 in. Lift: 257 Intake Valve Lift: .500 in. Exhaust Valve Lift: .486 in. Lobe Separation: 107 Camshaft Gear Attachment: 3-Bolt Requires: 9.5:1 compression 2800 or up stall stall converter Aftermarket intake Lower differential gear ratio Headers FAQWhat lift is a Mutha Thumpr cam? The Comp Cams CL12-602-4 Mutha Thumpr cam has a lift of 0.500/0.486 inches. This lift profile enhances valve movement for increased performance. What is a thumper cam? A thumper cam, like the Big Mutha' Thumpr 243/257 hydraulic flat cam/lifter kit, features an aggressive idle. It provides a distinct, lopey sound, emphasizing performance characteristics. What are the specs on a Mutha Thumpr cam? The Comp Cams CL12-602-4 offers a duration of 243/257 at .050" lift with a 0.500-0.486 lift range. Designed for improved low-end torque and high-end horsepower. Do cam kits come with lifters? Yes, the Big Mutha' Thumpr 243/257 hydraulic flat cam/lifter kit (CL12-602-4) includes lifters for a comprehensive installation. 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