Speed By Spectre®, The 400mph company™. Rooted in racing, we design and build every product with the same goal in mind; the best performance in the market... proven on the racetrack! All Speed By Spectre® products are designed to perform as good as they look using the highest quality materials and engineered for optimum fit and function.
- Fits small block Chevrolet 265-400 and Chrysler 273-440 cubic In. engines
- 3/8 In. x 1 In.
- Hex head intake bolt design is easier to install in tight spaces
- Lifetime warranty