Can you use 305 headers on a 350?
The exhaust port location is the same for the 305 and the 350 (the 283 through 400 and any other small block assembly you might happen to have around, too!), as well as the frame crossover location. If you want to install the headers easily, wait for the engine swap.
Are all SBC headers the same?
just about any set of headers will fit any sbc. the difference comes in the port sizes. they will all bolt up. chances are you have a set of 1 5/8 long tubes which is probably the absolute most common size headers.
Will 302 exhaust manifolds fit a 351?
Although the header flanges will fit both engines (both engines use the same heads) the headers for the 289/302 will not fit the body in the same way because the 351W is taller and wider than the 289/302. You will need to swap the headers for a pair specifically for the 351W engine.
How long does it take to fix a exhaust manifold?
Usually, this type of repair will run between two and three hours. Most independent shops charge around $80 to $90 an hour, so it should cost between $160 and $270 in labor.
Does JB Weld work on exhaust manifold?
JB Weld ExtremeHeat is perfect for making repairs on all manner of high-heat parts, including exhaust manifolds, mufflers, catalytic converters, exhaust pipes, engine blocks, fireplaces, smokers/fireboxes, and many more crack-prone items.
Why does exhaust manifold crack?
The exhaust manifold is exposed to the extremes – it’s heating and cooling, which causes constant expansion and contraction. Manifolds can crack over time due to the stress from constant, extreme temperature changes.
What is the best welding rod for cast iron?
Nickel alloy electrodes
Can you repair a manifold?
When you have cracked exhaust manifold, it might be possible to repair it rather than spend money on a new one. Taking it to a repair shop could cost you quite a considerable amount for labor and parts, so trying a repair yourself first can be a good option.