Torque sequence of what. Heads, wheels, etc.
Head torque sequence for a 2002 3800
its 144
115in-ibs
headboltstork
I would recommend that you consult a repair manual for torque values as well as tightening sequence
The torque specifications for the cylinder heads on a 2005 Pontiac Grand Am with a 3.4L engine are typically 37 ft-lbs (50 Nm) for the initial torque, followed by a 90-degree turn on each bolt. It's essential to follow the correct tightening sequence and procedure to ensure proper sealing and avoid warping. Always refer to a service manual for the most accurate and specific guidelines.
40 lb/ft Cast iron heads.
The primary difference between 455 Pontiac heads and 400 Pontiac heads lies in their design and specifications, which affect performance and compatibility. The 455 heads typically have larger combustion chambers, allowing for higher displacement and more airflow, which can enhance power output. In contrast, 400 heads generally have smaller chambers and different port configurations, which can influence compression ratios and torque characteristics. Additionally, the valve sizes and flow capabilities may vary, making them suitable for different performance builds.
Fist tighten to 50lbs in sequence,rhen to 60lbsin sequence and then to 65-72 ft lbs in sequence. Wait about ten minutes then recheck and tighten to the 65-72 ft lbs.
what is the torque pattern for ford 302 heads?
Iron Intake to Iron Heads - 40ft lbs Aluminum Intake - 25ft lbs