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Introduced in 1970, the Pinto engine has been produced in 1294cc, 1593cc, 1796cc and 1993cc capacities. The 1.3 was rarely used in UK models (mainly on early Sierras) since the 1.3 X/Flow was used more often in its favour.
Both the 1.3 and original 1.6 used the same short rods and crank. However, the later 1.6 E-max (introduced in 1984) shares the same longer rods as the 1.8 and 2.0 engines. The 2.0 engine is easily modified to any stage of tune, but using anything other than a fast road cam in the other engines can create rocker geometry problems.
A typical fast road tune will include a modified cam, flowed head and the best of the standard carbs - the Weber 32/36 DGV/DGAV. As with the Crossflow engine, a whole range of parts are available to modify this engine to any stage of tune.
Always check for valve to piston clearance as you never know how much has been taken off the head and block in the past. Compression is easily raised by skimming the head and can be increased up to 10.5:1 before having to consider forged pistons. These pistons can take up to 12.1:1 compression. Capacity can be increased to 2090cc by using the 2.8 V6 standard piston (93mm). To use these pistons, the small ends will need to be narrowed and the block needs to be decked. The 205 block (used in injection and 2wd Cosworth engines) will easily bore to 93mm without breaking through.
The standard block will often bore to this size but cannot be guaranteed. The injection ‘wide beam’ con rods are a good fitment since they should take 7500 rpm using a good big end nut and bolt. The flywheel should be double dowelled to the crank for HD and competition use to prevent the increased torque shearing the flywheel bolts. When aiming to produce more than 150bhp, we would only recommend using twin 45 DCOEs.