gt3071r240
08-03-2005, 11:29 AM
i am looking to buy a sr20det block. . .the last block that i had the arp main studs ripped out the threads. . .i am also looking to know if threre is a difference between the s13 redtop block and s13 blacktop block. . .curious about oil cooling passages etc. . .the head that i will be using is a s13 blacktop head. does anybody know if you can mix the s13 redtop block s13 blacktop head?