Not even close...
No. The Pontiac headers will not bolt up to the Chevy small block.
"SBC headers" typically refer to shorty headers for a Small Block Chevy engine. These headers are aftermarket performance parts that are designed to improve exhaust flow, increasing engine efficiency and power output. They are often used in high-performance applications or custom builds.
no
It's lean.
Pontiac uses same block no small or big, Chevy describes their engines small or big
No, no, no. Two totally different motors.
Depends on what size small block or bb chevy. Cast iron or aluminum. All of these must be taken into consideration.
Yes. it is the same as S10. Alston Cassis Works, makes a kit, with everything you need, from mounts, to headers.
On a small block Chevy the distributor goes through a hole in the intake manifold. On a Pontiac the distributor goes behind the intake manifold.
If they are indeed both small block Chevies, then yes the intake will work.
yes. the last year of any Pontiac v8 was the 301 in 81. the standard engine in the 82 and up firebirds was the corporate engine-the Chevy 305
For complete engines, the weight of the average (stock) 400 Pontiac at about 650 lbs. is roughly between the average (stock) Chevy small block at about 575 lbs. and the average (stock) Chevy big block at about 680-685 lbs..