GM LS 104mm Cast Aluminum Throttle Body Elbow with 4150 Flange - Polished Rocker Arms you can tell that the

you can tell that the elastomer strips need replacing when the marks start to move

These valve covers are built for the Ford FE Big Block V8 family

Adjustable: No

Street rod and muscle car engine bay finishing

GM LS 104mm Cast Aluminum Throttle Body Elbow with 4150 Flange - Polished Rocker Arms you can tell that theDesigned for GM LS fuel injection applications, this throttle body elbow helps adapt EFI throttle body placement to 4150 style intake layouts while supporting clean airflow routing. Throttle Body Adapter Fitment Main port inside diameter is 104 mm. Intake manifold flange style is 4150 Square Bore. Height is listed as 5. 120 in.. These dimensions should be checked against hood clearance and throttle body placement. Elbow Construction & Layout Aluminum