Comp Cams CS X4 270HR-11 Taco Vinyl Innovative X-frame design with 18"

Innovative X-frame design with 18" headroom

Low tension checking springs can be installed by hand in place of valve springs

We are so confident in their off road capabilities that we used them in our pit Crew Competition at KOH

it does present some limitations when it comes to performance camshafts

Comp Cams CS X4 270HR-11 Taco Vinyl Innovative X-frame design with 18"For OE Style Hydraulic Roller Lifters; Fits '87 '02 305 350 cid Chevy Small Blocks2 (Except LT1) Good mid range power Needs headers, 3. 55 4. 10 gears, 2000 stall Noticeable idle Xtreme 4X4T Cams: Improved throttle response & increased low & mid range RPM horsepower for towing & off road Designed for use w common restrictive factory exhaust systems; Including OEM exhaust manifolds Vehicle Fitments: Year Make Model Submodel 1987 1991 Avanti II Base