These blocks are a good one to stay away from cheap Chinese caps !!! NO plate hone and the decks are not square .006 from low to high The blocks are old 2 bolt mains with 4 bolt stepped caps added . It did sonic test very good. Look this thread over
SBC 383 Oil Pump Broke Off and Broken Main Cap- WTH? - Chevelle Tech
I have one in the shop. The customer is building a blower street engine and after seeing this thread I am putting on billet splayed caps.
In the long run it would have been cheaper and better to buy a Dart SHP block all machined.
SBC 383 Oil Pump Broke Off and Broken Main Cap- WTH? - Chevelle Tech
I have one in the shop. The customer is building a blower street engine and after seeing this thread I am putting on billet splayed caps.
In the long run it would have been cheaper and better to buy a Dart SHP block all machined.