Cylinder bore centres ‘are 111.8 mm (4-1/3 in.), the same as all past and current. small block. Chevrolet V8's and the current 90-degree v6. ‘Compression ratio is 8.5:1. It_ allows the efficient utilization . of regular-grades of unleaded © gasoline... . ; . Although the. V6 in- corporates tried-and-true technology, it was literally . designed from,scratch. _ It is a most. compact power plant, especially when viewed from front or rear quarter, where the 60-degree . angle between the cylinder. banks. can best be seen. The engine block and cylinder: heads are of cast iron. Nodular iron is used for the exhaust manifolds. Inlet manifold, water pump housing, oil pump housing, engine front-cover components and staged 2- barrel Varajet carburetor are all aluminum. The V6 is also equipped. with a camshaft-driven ‘distributor, oil pump and fuel pump; conventionally- driven water pump, and pulse-air emission system. Engine coolant exits at rear of inlet manifold after flowing through the head and block in parallel fashion. Horsepower is rated at 115 at 4,800 RPM, torque, 145 ft./Ibs, at 2,400 RPM. The V6 cylinder heads are -- the result of extensive laboratory flow work on both inlet and exhaust porting with careful attention given to material con- servation for good weight control. Parting lines between inlet manifold and the cylinder heads have been moved outboard to provide clearance for valve lifter servicing. The V6 inlet ports are separated and rectangularly- shaped. This provides the. . necessary cross-sectional area for good space allocation relative to other engine components, and enhances engine breathing. The valves are in-line, and positioned somewhat cen- tratly in the head. Threaded rocker arm studs are set just inside the valves. Heat-treated steel push rod guide plates are clamped in place by the rocker arm studs, which are threaded into the cylinder heads. The use of plates, in place of machined-in-the-head guides, saves weight and provides a more accurate and stable positioning of the push rod and rocker arm. The new V6 has gen- crously-cored internal passages for cooling exhaust valve seats and spark plugs. An exhaust passage supplies hot gasses from the right- hand head to heat the inlet mvanifold floor, thus raising _ which aids combustion. . oT a the temperature of ‘the fuel- air mixture: The combustion. chamber is a modified-open design __with-a small “‘squish’’ area. This provides turbulence, vehicle.” This. “Pp extra interior | spa retaining a short 4488 mam -(176.7-in,): overall ‘length, - “helps keep weight of the: vehicle in’: the 1134 MS (2,500-Ih. )area. phe | NE wsnl EEL BELTED DRADIAL Two extra-wide steel belts give: improved mileage, longer tread life and puncture resistance. 2 radial polyester body plies soak up shocks fora smooth quiet-ride. The long-life tread keeps maximum rubber on the road. This is Gulf’s top quality tire. The Gulf Super Traction Radial: is available at a price you can't afford to pass up. It’s a tough fibreglass radial that delivers the road handling ability and traction of a higher priced steel- belted radial. , So, if you’re looking for maximum mileage from your tire buying dollar, check. the - Gulf Super Tractiorr Radial. Oo You'll be amazed by the features, and more Se amazed by the low price. ve poset a i: a ae OL RIE PEP JOON Oe Oe > Tasers. .mx eet, CROWN 78 The Crown 78, is an ideal blend of quality and economy. It provides a smooth ride, with no flat spotting, on the highway or DELUXE CROWN ) BELTED The Deluxe Crown Belted Tire is built with 2 polyester body plies and 2 fibreglass belts for long tread inthe city. life. with its new 7 rib tread esign and belted construction, the —— Deluxe Crown Belted provides Cs Sa excellent wet or dry traction. It is , equal or superior to most North ° | ecen American Car original equipment FOR EXTRA CONVENIENCE. pelted tires. USE YOUR GULF TRAVEL CARD, VISA OR MASTER CHARGE. Gull and Oe: ae tagistered trademark of Guilt Oil Carporation /Gultt Canada Limied fogisteryd unor iy wo : + North Shore News .