Page 17 - 2016 Healey Performance Catalogue

17 4 C Y L I N D E R E N G N E B O T T O M E N D 100M PISTONS FLAT TOP PISTONS STEEL CRANKSHAFT I These Die Cast Forged by Omega for maximum strength, Made from EN40B and Nitride hardened. pistons are made these give an approximate compression This steel crankshaft is made with the specially for us by ratio of 10.5:1. The crown is of sufficient ‘Works’ type 8 bolt fixing for the flywheel Omega, one of thickness to allow a 6cc dish to be and is also ground ready for our rear oil Britain’s leading machined in if a slightly lower compression seal kit. Requiring no additional machining competition piston ratio is required. They are supplied with to fit as it uses the standard main bearings manufacturers. They have the original 100M plain gudgeon pins to suit fully floating con and original 111.1mm stroke. It can only be dish of 14cc which will give a compression rods (gudgeon pins for standard clamp rods used with our Steel Con Rod Set ratio of approximately 8.5:1 providing the available to order). CENG432R. cylinder head and block have not been CENG409F 88mm (3.4646") set £495-00 For the person who wants the ultimate in skimmed. Being lighter and having a better performance, these obviously strengthen the Replacement Parts design than the original these are stronger bottom end considerably and mean that the CENG413/3 Chrome top ring £9-95 for performance use and quieter for road engine can be revved safely to very high CENG413/7 2nd ring £8-65 cars as well. We have used metric sizes in limits. order to take advantage of the latest ring CENG413/10 Oil ring £12-65 CENG432K Crankshaft £2150-00 technology and reduce crank case CENG409G Floating gudgeon pin £16-95 CENG419 Big end bearings to suit std. size £34-87 pressure. They are supplied with gudgeon CYLINDER LINERS CENG419R Heavy duty big end bearings pins to suit standard clamp conrods Good quality cast iron, straight plain liners, to suit std. size £82-40 (gudgeon pins for fully floating rods available in three sizes, all require STEEL CON ROD SET available to order). The sizes stated are the shortening. Dimensions approximate. actual bore sizes, all clearances have been These are English made from forged billets ENG417B 3.543” OD 3.346” ID 9.0” Long allowed for on the piston. (90.00x85.0x228mm) £40-00 and fully machined in H-beam style to suit conventional fully floating little ends and CENG409 88mm (3.4646") set £395-00 CENG417 3.562” OD 3.375” ID 9.0” Long (90.47x85.73x228mm) £40-00 can therefore only run with pistons that CENG410 88.5mm (3.4843") set £395-00 CENG417A 3.597” OD 3.441” ID 8.15” Long contain circlip grooves (i.e. our pistons CENG411 89mm (3.5039") set £395-00 (91.36x87.4x207mm) £40-00 CENG409, CENG410, CENG411 & CENG409F). Replacement Parts These are considerably lighter and stronger CENG413 88mm ring pack per piston £31-00 than standard ones. CENG403 Suits standard crank. £1475-00 CENG414 88.5mm ring pack per piston £31-00 CENG432R Suits our steel crank. £1175-00 CENG415 89mm ring pack per piston £31-00 Replacement Parts CENG409C Clamped gudgeon pin each £19-95 CENG605 Rod bolt each £12-95 +44 (0) 1543 472244 © Denis Welch Motorsport 2016