Header Spec’s:
This header is available in a 1 ¾” tube size with a 3” collector also a 1 7/8” or 2” tube size with a 3 ½” collector. All of our headers are hand made so we can build any combination you need, including a step design or for tall deck blocks or aftermarket cylinder heads.

What Fits:
All the tubes are inside the frame, with excellent ground clearance, spark plug access and oil filter access. On our design car we used a Moroso aftermarket oil pan and a stock pan. The bottom of the header was even with the bottom of the stock oil pan and ½” higher than the bottom of the Moroso pan. The available room on each side of the stock oil pan for sump kick outs is 2 ½” on the passenger side and 3 ¼” on the driver side.
The header is designed to fit side motor mounts, but not motor plates. We used DSE motor mount adapters #060401 on the engine and small block frame mounts on the chassis. Our LS headers come with oxygen sensors welded in each collector or if you request a “V” band connection for your exhaust reducers then we would install the oxygen sensor bungs in the reducers which can be rotated to any position.

This header will NOT fit a factory air conditioning box on the firewall, mechanical clutch linkage or factory column shifter linkage, but it WILL fit up to a 9” power brake booster, (Jegs #965-PB9513)
A stock or aftermarket starter will fit.
We recommend using aftermarket spark plug wires either Taylor or MSD with a 45 degree angled boot.
Special note for LS-7 engines: The stock oil pan for the LS-7 has dry sump oil lines on the passenger side. These oil lines will interfere with our header and need to be redirected or switch to a wet sump oil pan.

Installing the headers:

Driver side: the steering box makes installation difficult. We recommend installing this side as the engine is installed.

Passenger side: this side is very easy. With the starter and spark plugs in place the header can be installed from below.
Refer to our header installation tip’s page for additional information.

Thank you for selecting Lemons Headers!
If you have any questions, give us a call at 805-239-8998