Pistons

[HK1837]

A 4.1L Ford inline 6 probably has at least as much potential as a carbied 253. Especially the alloy headed crossflow engines.

253's are a great little engine. Making them go harder doesn't take all that much. Inlet manifold and carby aside though there is no secret of the easiest and cheapest way to make them go harder at rebuild time. Only involves 2 x parts: Block and crankshaft! So just replace the 253 block with a 308 block. And use 308 crank or a VR-VT 350 crank. Everything else costs the same as 253 replacement parts: pistons, cam, machining costs etc.

[Blocker]

_{Nice idea but in my case the block numbers match the chassis and plates, so my rebuild is more for nostalgic reasons rather than performance.}

[0488TINTER]

just get one of those ACL rebuild kit and get the heads serviced then.

slap a baby cam and a 308 manifold with rebuild carb and she'll be a cracker