How much horsepower does a 428 Pontiac motor have?
How much horsepower does a 428 Pontiac motor have?
The 428 was rated with 260 horsepower at 4,600 rpm, and that could be boosted to 270 with some factory modifications. The engine had 472 foot-pounds of torque, or pulling power, at 3,200 rpm.
When did the Pontiac 428 engine come out?
by James Jordan. The Pontiac 428 cubic inch engine was used only from 1967-69. It was one of the largest engines Pontiac produced, but it was used more to power big cars such as the Bonneville, and not as much for performance cars such as the Firebird. Since that time it has been used as a performance engine in several cars by drag racers.
Can a 1967 Firebird GTO have a 428 on it?
We’re not saying that you have to build a 428 for your 1967–69 GTO or Firebird, but if your search to return your car to numbers matching comes up short, you’ve got our blessing to drop in a 428. You don’t even have to change the fender emblems.
What kind of car was the Royal Pontiac 428?
Royal Pontiac’s engine swap wasn’t a new trick for Pontiac. A 421 was secretly swapped into a Grenadier Red 1964 GTO that Car and Driver magazine famously pitted against a Ferrari GTO.
When did Pontiac change to 455 cubic inch engine?
The bore — the width of the pistons — changed, but the stroke, or the distance the piston travels, did not change. The iron used for the 428 block was stronger than what was used in the 421. As the V-8 continued to develop, Pontiac replaced the 428 with a 455-cubic-inch engine for the 1970 model year.
What kind of engine was in 1967 Pontiac Firebird?
Pontiac 326 engine in 1967 Firebird. In 1963 Pontiac dropped the Buick division built 215 cu. in. aluminum V8 it had offered in the Tempest and replaced it with a small-bore version of the standard 389 cu in (6.4 L) Pontiac V8.
by James Jordan. The Pontiac 428 cubic inch engine was used only from 1967-69. It was one of the largest engines Pontiac produced, but it was used more to power big cars such as the Bonneville, and not as much for performance cars such as the Firebird. Since that time it has been used as a performance engine in several cars by drag racers.
We’re not saying that you have to build a 428 for your 1967–69 GTO or Firebird, but if your search to return your car to numbers matching comes up short, you’ve got our blessing to drop in a 428. You don’t even have to change the fender emblems.
What kind of engine did a Pontiac 389 have?
So as we get ready to work on our next Redline Rebuild engine time-lapse with a mid-1960s Pontiac 389 V-8, I dove into these power mills and their ground-pounding torque, which made them top contenders of the ’60s and ’70s muscle car wars.
