How do you identify a comp camera?
How do you identify a comp camera?
COMP Cams uses two-number designations for all its engine families. The LS engine is designated 54 and this number is generally the first two numbers that define the actual cam part number. Other examples include small block Chevys -12, big block Chevys -11, and 5.0L small block Fords -35.
When did Ford start making the Triton overhead camshaft engine?
For example, Ford began producing the Triton overhead camshaft (OHC) engine in 1997 in V8 and V10 configurations, which was installed exclusively in its trucks and SUVs (not cars). Over the years, there have been numerous variants, changes and improvements in the 4.6L V8.
What kind of camshaft does a Ford 4.6L have?
The PI head (right) has square intake ports that are larger than the ones found on the NP” head on the left. The 1991-1998 SOHC NPI heads have camshafts with .482 lift and 204/208 duration. The 1999 and newer SOHC PI heads have camshafts with .535 lift and 192/184 duration.
When did Ford put roller cam in 3.8L engine?
Ford put a roller cam in the 3.8L in 1989, so they added four bolt holes in the valley for the lifter guides and three more holes in the front of the block for the chain tensioner. There was also a big boss added for a large hex plug that was located a half way back on the passenger side and two inches up from the pan rail.
When did Ford change cylinder heads and valvetrains?
Beginning May 2, 1966, Ford changed both cylinder heads and valvetrains on 289 engines. Prior to this date in production, Ford had pushrod guide holes machined into the castings. However, from May 2, 1966 on, Ford found a cheaper way to make 289 engines.
The PI head (right) has square intake ports that are larger than the ones found on the NP” head on the left. The 1991-1998 SOHC NPI heads have camshafts with .482 lift and 204/208 duration. The 1999 and newer SOHC PI heads have camshafts with .535 lift and 192/184 duration.
For example, Ford began producing the Triton overhead camshaft (OHC) engine in 1997 in V8 and V10 configurations, which was installed exclusively in its trucks and SUVs (not cars). Over the years, there have been numerous variants, changes and improvements in the 4.6L V8.
What do you need to know about Ford cylinder heads?
Most Ford cylinder heads utilized a step cast into the head that acted as the valve spring locator. When installing a dual spring, it is highly recommended that this step be removed by machining to minimize the possibility of coil binding the inner spring.
Are there any problems installing a new camshaft?
By far, the most common problem encountered when installing a new high performance camshaft is the incompatibility of the existing valve springs to the new cam. All of the factory valve springs are designed to work with a certain lift cam, and since most aftermarket cams have higher lift, the spring must be addressed.
