Engine Block Options for Building BigInch LS Engines LS ...
7/6/2017 0183 32In the wake of aluminum LS blocks, dollar for dollar, its tough to beat the factory GM 6.2L unit. Taking the virtues of the LS2 block one step further, the 6.2L boasts the same wpcesed cylinder wall design but with a larger 4.065inch bore. When matched with a 4.125inch stroke, this bigbore block brings the displacement tally to 428 ci.