Will '94 and up 11mm arp studs fit on a 91 gsx?

[dsmalaska]

So I received my car with an unopened box of ARP headstuds (still have the factory plastic wrap around the box) I planned on selling them because I didn't need them but I pulled my engine and I wanna use them now. But I opened the box and the studs aren't the same as which came out of the engine. On the box it says "94 and up 11mm hsk" will these work on my 91 6 bolt 4g63?

 

[donniekak]

Sure. Just fill in the head bolt holes in the block with a welder, then drill and tap them for 11mm studs.

Actually the 92 1/2 blocks on up use 11mm studs, only the 90-92 1/2 6 bolts use the larger m12 studs.

 

[92awddsm]

No. They will only fit 93 and up 7 bolt.

 

[dsmalaska]

Ah alright I kind of figured since they're different sizes. Thought I'd still ask. Thanks guys.