header delima...

My experience with D453 in my 70 Dart

Had to use washers to raise the drivers motor mount to clear the power steering

Steering coupler is hitting, will need a u-joint adapter

Will need high heat wrap on the PS box to preserve it

1.03 PST torsion bars required header dinging to clear everything

Clearance everywhere is very tight.

I have read that some went right in , some minor mods, and nightmare.

I could be wrong but I think that due to Ma Mopar's poor quality control back then, the clearances are all Over the place, thus causing header fittment problems

I have handled many small block headers in the last 45 yrs. D453's have the thickest head flange and thickest tubing that I have seen. They are worth every penny.