My friend just had his 318 2x4 Poly rebuild last year for under $2,500 and
they pulled the engine and reinstalled it! He got new pistons,all the machine
work,bearings,ect.They even painted the engine the correct MOPAR silver.It all
depends on who does the work and the quality of the parts.The 400 in my '57
cost twice as much in parts and machine work,and it's a more common engine
to get parts for and I assembled it other than the short block,but I used MOPAR
PERFORMANCE parts,an Isky cam,tri-metal bearings,ect,ect. The machine work was
done at the best race shop around,the engine internals were balanced,
each piston was measured and the cylinder bored for it.There is a lot of
difference in machining at a mass production shop and a true race prep shop.If I
was getting even a stock engine done I would talk to the local drag racers and
stock car drivers and see who most of them use for their work,I would also after
the block and heads were checked bring in my own bearings,pistons (if
needed,but most engines need at least a .010 over bore to true up the
cylinders,even when new),cam,brass freeze plugs(they don't rot out) valve
springs and anything else it needs.If you buy the parts yourself it's
usually cheaper than thru the shop,you can shop around more,compare prices and
don't have to pay their mark up.Remember one thing,you get what you pay for most
of the time.A balanced well put together engine will run smoother and last
longer,stock or hot rodded.Mass production shops are into speed,not quality.They
don't plastigauge the bearings,the cylinders are all bored to the same size,not
to the piston size,and they do vary,the torque specs are usually not considered
and done with an air gun,they also don't degree the cam .Spend the extra
couple of hundred dollars on quality machining it's worth it.I think my
machining with bottom end assembly and balancing cost around $1200.
Adam Lindenbaum
426 Hemi/4 speed Fury
57 Savoy Kustom
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