Differences between a stock 4.3L and a SyTy engine...

[restoguy]

I'm sure this has been gone over before. I searched until my eyes burned and the search function gave me an error, but didn't find the answer!

What exactly is different in the long block between a standard Z 4.3 and the syclone typhoon engine? I'm guessing the block, rods, heads, valve train (minus cam) and timing components are the same. Crank, pistons, cam are all that's different. Am I wrong?

 

[powercat6]

Re: Differences between a stock 4.3L and a SyTy engine...

I'm sure this has been gone over before. I searched until my eyes burned and the search function gave me an error, but didn't find the answer!

Yes it has. The block is a standard Romulus 4.3 LB4 block used in S10s, Blazers, Astros Jimmys, etc. It's different from a 4.3 Tonawanda block which was also used in S10s, Blazers, Astros Jimmys, etc. Look for an "R" on the front of the block; below the driver side cylinder head if I recall correctly.

http://www.syty.net/forums/showthread.php?t=46400&highlight=parts

http://www.syty.org/old/partnumbers.html

http://www.syty.net/forums/showthread.php?t=89041&highlight=engine

http://www.syty.net/forums/showthread.php?t=85681&highlight=engine

 

[dgoodhue]

Re: Differences between a stock 4.3L and a SyTy engine...

I'm sure this has been gone over before. I searched until my eyes burned and the search function gave me an error, but didn't find the answer!

What exactly is different in the long block between a standard Z 4.3 and the syclone typhoon engine? I'm guessing the block, rods, heads, valve train (minus cam) and timing components are the same. Crank, pistons, cam are all that's different. Am I wrong?

Cam, pistons and nodular main caps are different.

 

[Icarus-54]

Re: Differences between a stock 4.3L and a SyTy engine...

pistons and main caps,cam is the same

 

[powercat6]

Re: Differences between a stock 4.3L and a SyTy engine...

cam is the same

http://www.syty.net/forums/showpost.php?p=914732&postcount=16

 

[restoguy]

Re: Differences between a stock 4.3L and a SyTy engine...

Thanks Powercat6. That's the info I couldn't find for some reason, and then some!

Wabash Cannonball 4 Ever!

 

[It's just a six]

Re: Differences between a stock 4.3L and a SyTy engine...

pistons and main caps,cam is the same

Just wondering why the pistons are the same?

Where did you get that info from?

 

[restoguy]

Re: Differences between a stock 4.3L and a SyTy engine...

I think he was saying the pistons and main caps are different, but the cam is the same. Which it seems it isn't. Just came across differently when typed.