Hypercoils Coil-Over Spring - 2.25" ID x 5" Tall - 850 lb. 3419MB 4-5 hour installation time

4-5 hour installation time

1977 Pontiac Firebird Base CID 350 Naturally Aspirated GAS

75 in Round Port

The tubes also come equipped with two billet aluminum factory style quick connect adapters that works with the OEM intercooler

OE proven design

Hypercoils Coil-Over Spring - 2.25" ID x 5" Tall - 850 lb. 3419MB 4-5 hour installation timeHypercoil Coil Over Springs are high performance, aftermarket suspension springs primarily used in Motorsports and Motor Racing. Hypercos coil over springs, also known as Hypercoils, offer a wide range of free lengths and rates which provide the suspension designer latitude in creating a motion ratio for the suspension system that will permit an optimized damper or spring assembly to control a wide range of wheel travel. Optimum Body Diameter is the