01543 431941
info@partsworldperformance.com
Special order from USA - ETA to arrive is 8-10 weeks. If you require an express air-freight please contact us for a quote.
4.250" finished bore
4.310" max bore (non-siamese bore)
Bolt boss (not machined) added near distributor hole like 8.1L
Additional boss for manual transmission clutch pivot (machined)