How big is the connecting rod on a Pontiac V8?
Effectively, Pontiac’s V8s were all small blocks, sharing the same connecting rod length 6.625 in (168.3 mm) (except for the later short deck 301 and 265 produced in the late ’70s and early ’80s before Pontiac adopted universal GM engines).
What kind of rods are used in Pontiac engines?
During the 1960s Pontiac introduced a strong cast unit constructed of Armasteel, a GM trade name for a pearlitic malleable iron alloy that possesses some steel-like qualities. Because of age, stability, and durability concerns, I strongly feel that neither of these original Pontiac rods should be used in any high-performance engine.
When did Pontiac stop using closed chambered heads?
In 1967, the cylinder head design was improved for the 400 4-barrel engine. The valve angle was reduced from 17 degrees to 14 degrees for better breathing. 1967 was the last year for closed-chambered heads. The “670” head was a 1967-only casting, and the only PMD head to have a closed chamber with the new 14 degree valve angle.
What do you need to replace a rod in an engine?
Connecting rod bearing replacement costs have to factor in all the additional parts as well. You’ll need new engine seals and gaskets, cylinder head bolts, connecting rod bearings, and a bunch of money to flush the engine and cooler lines.
What kind of connecting rods does a Pontiac use?
Heat treating to a specific hardness is required to survive the greater inertial forces associated with power increase and/or high engine speeds, making it even more costly. Depending upon the year and/or engine application, Pontiac used cast or forged I-beam connecting rods.
What’s the best way to assemble a Pontiac engine?
You can also use residue-free solvents and lint-free cloths to wipe contact surfaces just prior to assembly. You can never be too clean when building any engine! A Fel-Pro number-2806 Gasket Kit contains virtually every gasket required to completely assemble a typical Pontiac engine.
Where is the steel plug on a Pontiac V-8?
The lip of the steel plug should be recessed approximately .300 inch below the surface. Driving the rear plug in too far can cause the cam to contact it during typical operation, sending metallic filings throughout your engine!
What kind of steel forgings did Pontiac use?
Steel forgings are durable but somewhat expensive to produce. Heat treating to a specific hardness is required to survive the greater inertial forces associated with power increase and/or high engine speeds, making it even more costly. Depending upon the year and/or engine application, Pontiac used cast or forged I-beam connecting rods.