Description
Utilizing the proven short runner tunnel-ram style, both of these manifolds provide the next step up in performance for LT1 and LT4 owners. These are both direct stock replacements for OEM equipment with all required emissions features. Our patented Air-Gap design delivers a cooler and denser air stream for maximum power output. These intake manifolds are designed to work with either our 52mm throttle body #3809 or 58mm throttle body #3810. They also accept early and late OEM LT1 throttle bodies and fuel rails. #7113 is designed to match #61905/#61919 LT1 cylinder heads, and #7109 is designed for #61929/#61939 LT4 RPM cylinder heads. Both will also work with OEM LT1 and LT4 heads with minor head port matching.