Doug's Headers LS Engine Swap products work together to ensure a proper fit for the LS Engine into specific applications. We understand that engine swap projects often take place over time and careful consideration goes into choosing the right products to suit a range of budgets. That's why we're offering our LS engine swap products a la carte so you can buy product as your build requires with the flexibility to build your project your way.

• Mandrel bent 1 7/8" primary, 3" collectors
• Fits all GM LS engines and includes bungs for 02 sensors
• Designed for use with Doug's Headers LS swap mounts and exhaust system
• 3/8" flanges
• Silver Metallic Ceramic Coating for strong corrosion resistance and heat retention

Doug's LS Engine Swap products are sold separately but designed to work together. The complete line of LS Engine Swap products includes for this application includes:

Doug's Headers SK104 Motor Mounts 70-74 GM F Body 4.8-6.2L LS Engine Swap Mild Steel, Black

Doug's Headers SK105 Motor Mounts 75-81 GM F Body 4.8-6.2L LS Engine Swap Mild Steel, Black

Doug's Headers SKC104 Transmission Crossmember 70-81 GM F Body 4.8-6.2L LS Engine Swap Mild Steel, Black

Doug's Headers D3352 Long Tube Header 70-74 GM F Body 4.8-6.2L LS Engine Swap 1 7/8" Primary 3" Collector Silver Ceramic Coated

Doug's Headers D3352-B Long Tube Header 70-74 GM F Body 4.8-6.2L LS Engine Swap 1 7/8" Primary 3" Collector Black Hi Temp Coated

Doug's Headers D3351 Long Tube Header 75-81 GM F Body 4.8-6.2L LS Engine Swap 1 7/8" Primary 3" Collector Silver Ceramic Coated

Doug's Headers D3351-B Long Tube Header 75-81 GM F Body 4.8-6.2L LS Engine Swap 1 7/8" Primary 3" Collector Hi Temp Black Coating

Doug's Headers D3358 Mid Length Header 70-81 GM F Body 4.8-6.2L LS Engine Swap 1 7/8" Primary 3" Collector Silver Ceramic Coated

Doug's Headers DMP104 Exhaust Mid Pipe 70-74 GM F Body 4.8-6.2L LS Engine Swap use with D3358 Header 3" 304 Stainless

Doug's Headers DMP105 Exhaust Mid Pipe 75-81 GM F Body 4.8-6.2L LS Engine Swap use with D3358 Header 3" 304 Stainless

Doug's Headers DES104 Exhaust System 70-74 GM F Body 4.8-6.2L LS Engine Swap 3" 304 Stainless

Doug's Headers SKOP100 LS Engine Swap Oil Pan

Our ignition and exhaust products ship from our warehouse in Lenexa, KS. Our normal shipping time is 2-3 business days for in-stock parts.

• At this time, PerTronix does not offer expedited shipping options from our website.
• All packages must be inspected upon receipt for any missing or damaged goods and claims for such must be made within 7 days of receipt.
• PerTronix does not currently ship our products internationally from our web store. For international orders call 909-599-5955 or connect with us here.

Returns at Pertronix are accepted within 90 days of purchase with prior authorization, ensuring items are in new, resalable condition. To initiate a return, call for an RGA and follow provided instructions. Customers are responsible for return shipping, using a trackable method.

Refunds exclude initial shipping and handling fees and may be subject to a restocking fee. For defective or damaged items, contact Pertronix directly. We are not responsible for user-initiated damage/loss of parts.

For complete details, visit our Returns page.