944 turbo block same as 944 NA block
09-26-2008, 01:57 PM
#16
Quit Smokin'
Rennlist Member
Rennlist Member
How about the old school VW manual tension type the stud snaps off the block and trashes the motor.
09-26-2008, 02:04 PM
#17
Rennlist Member
I was that way until I built my new motor. Now I am a believer in the spring unit. It makes tensioning the belt so much easier -- usually gets it wihin spec without adjusting. The tensioner has two little holes in it that accept the b/s spanner wrench pins, which can be used to set the tension anywhere you want (just like old verion, but without needing to play with those eccentric cam adjusters things).
12-09-2020, 10:04 PM
#18
That depends on who you believe. There have been rumors and even articles posted in excellence about casting differences between the blocks indicating that the Turbo blocks have more material but based on my personal measurements of the mains, cylinder walls, water jacket depth, and block thickness and they're identical. I also doubt Porsche would have spec'd different metallurgy for the blocks to increase strengths.
The early blocks NA are different from the later 44 and 51 blocks so you do not want to use that because the oil feed journals are smaller which is why the early cranks were x-drilled. Somewhere around late 84 and early 85 they opened them up. To be on the safe side (id you don't know what your looking at) stick with an 86+ block for turbo use.
Do you need a block?
The early blocks NA are different from the later 44 and 51 blocks so you do not want to use that because the oil feed journals are smaller which is why the early cranks were x-drilled. Somewhere around late 84 and early 85 they opened them up. To be on the safe side (id you don't know what your looking at) stick with an 86+ block for turbo use.
Do you need a block?
let me know. My email is Michael.querin@gmail.com
