Using the latest casting technologies, RTS has designed these cast aluminium bellhousings allowing many popular engine/transmission combinations to be easily mated together. They have gone through SFI’s explosion-proof testing procedures and have come out the other side with a SFI 30.1 rating! Manufactured from one-piece A356-T6 cast aluminium, they are roughly 5 times stronger than standard replacement bellhousings and can withstand the harshest tyre shake, while still being able to fit under most floorpans. Small Block SB Ford 289, 302, 351 Windsor & Cleveland SFI 30.1 Certified Works with OEM C4 case Mounts to front pump on C10 applications Must use torque converter with small bolt circle (10.5") Works with most 11" and smaller torque converters T6 cast aluminium Precision machined 5x stronger than OEM Hardware kit included Requires removal of OEM bellhousing on OEM cases Use 157 tooth flexplate