25-1021

Speed Engineering LS Swap Headers - Mid Length

WILL NOT SHIP TO CALIFORNIA

Speed Engineering headers are made out of 304 stainless steel and offer great quality, performance, and affordability. The headers are mandrel bent, tig welded, and feature polished stainless steel construction, and they have all been dyno proven. Speed Engineering stands behind their headers in saying you will not find a better fitting, quality built, budget header for your vehicle.

Other improved features over competitors include V-Band collector construction, merge spikes, port matched flanges, and improved header to block/chassis clearance.

Features include:
  • Mandrel Bent Tubing
  • Full 1 5/8" Primaries
  • 2 1/2" Collector
  • V-Band Collector Construction
  • Collector Merge Spikes
  • Port Matched Flanges
  • Gains over 18+ rwhp
  • V8 Engines Only
  • 4.8L, 5.3L, 5.7L, 6.0L, 6.2L Engines
  • CNC Machined Flanges
  • Polished 304 Stainless Steel
  • Standard Graphite Manifold Gaskets

Note: "For LS series engine swaps only" These do not work on standard SBC or BBC.

Note: If using a larger 4L80E or older Turbo 350/400 transmission the bellhousing ears may need to be trimmed for proper clearance. These headers are tucked in tight to fit into older, narrow frames.

Vehicle Applications:

  • 1960's, 1970's Camaro, Nova, Firebird
  • 1968-72, Chevelle, (Early 60s require aftermarket steering shaft)
  • C10, Pickups, Panels: Chevy & GMC Trucks 1960+
  • 1988-98 OBS C1500 & K1500


Customer Reviews

Based on 14 reviews
86%
(12)
7%
(1)
0%
(0)
0%
(0)
7%
(1)
J
Johnny Cloud
Perfect

Put on my 1990 Silverado LS swap looks great sounds great

d
derrin evans

Awesome

P
Peter Kroening
Excellent product

Out of the box these seem like very high quality. They have very thick flanges and the wall thickness of the tubing seems more than adequate. I installed the headers on an LS swapped c1500 and the only figment issues I had were that I had to re-route my hydraulic clutch line and I had to remove the drivers side tin heat shield. Factory straight boot plug wires will interfere with header tubes on 2-3 of the cylinders so wires with angled boots are a necessity. My only complaint about the headers is that I wish the v-bands were stepped to ensure a concentric fit. Not a huge deal but it would make fitting up the rest of the exhaust a little easier.

M
Matt Jahn
Didn’t fit 97 k1500

Was excited when product showed up. Looked great and nice welds. But when I put them on they ride real close to the block and it sent the left side right into the front driveshaft so I don’t think they will work on 4x4, but could’ve made work on 2wd. So was bummed that I had to return. So why am I giving a 5 star?? Well because when I called in to Pro, I was treated excellent. They didn’t hassle me and didn’t tell me I was doing something wrong with the install or it was my fault. Very very happy with the customer service. They took the return and paid for the shipping. For this reason alone I hope to buy more products from them on the next LS swap. A lot of aftermarket company’s can learn from this. Good customer service goes along way and will come back to you in the long run!!! Thanks Pro Performance!!!!!!!!

M
Michael Thomas
Speed Engineering LS Swap Headers - Mid Length

Awesome product and thank you for the patience in answering all my questions! Will buy again, great customer service!