differences between 7 bolt NA and 7 bolt turbo

[yoshi_tony]

ok i have a quick question ive been searching and cant find anything my question is can i use a 93 4g63 7 bolt non turbo block on my 96 gst i know i would have to change the piston heads from the 4g63t to the NA but would the block, crank, rods from the na work for turbo application?

ps i know i have to add the feed lines, oil pan, water lines to turbo...

 

[95tsiemad]

I'm not sure but I think that you have to machine holes for oil squirters

 

[SpawnedX]

The block itself is pretty much identical outside of needing the oil squirters machined in.

 

[FLASH1970]

No oil squirters, no knock sensor, no crank angle sensor, and pistons should be the only differences.

 

[XiKeiyaZI]

You don't NEED the squirters...depending on what side of the fence you're leaning over. This has been debated for some time, a debate I stumbled over when I was young and under the impression that I could just slap a turbo on a 4G63....then I did some reading.

As far as the block itself, it's identical besides what's listed above.

 

[yoshi_tony]

oh ok i have about 7 bolt blocks but no cranks could i just put the crank from an early 7 bolt NA to the turbo 4g63 that already has knock,oil squirters, crank sensor? and if yes what rods would i use?

i have 3 95 blocks and 1 97 block

 

[19Eclipse90]

All 7-bolt crankshafts are the same so yes you can use an early, non-turbo crankshaft in your later year block. Similarly, all 7-bolt connecting rods are the same. The only turbo specific thing you need are turbo pistons.

 

[yoshi_tony]

thanks alot guys thats why i love this website!