Model Years Models Covered Part Number Piston Size Cost
1958-1962 MGA Twin Cam

MGA Deluxe

8777-14 2 1/4" $249*
8777-18 2 1/8" $239*
8778-34 1 3/4" $239*
8778-58 1 5/8" $249*

Standard size cylinders for the MGA's listed are 8777-18 on the front calipers, and 8778-58 on the rear. Oversize cylinders (8777-14 front, and 8778-34 rear) will provide approximately 10-15% greater force on the brake rotor, decreasing the required brake pedal pressure during braking, and potentially shortening stopping distances.

Miscellaneous Stainless Steel Parts:
HDC Part # MG Part # Item Description Cost
3824BV Bleeder Valve
316BPL Left Side Bridge Pipe $19.50*
316BPR Right Side Bridge Pipe $19.50*

* All of the pricing listed above is displayed in US Dollars, and it is applicable to both U.S. and non E.U. customers.
Those in the E.U. are requested to contact our exclusive stocking distributor, Classic Car Tuning, at for pricing information.