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1969 340 block fresh from machine shop 30 over. I have new kb pistons,mahle rings,oil pump,freeze plugs,stock steel crank. 20/20 still in the box from being turned.Have pulleys,water pump, and the mounting brackets.I also have a set of 360 heads that will need a valve job no springs. Looks to be...

I found some heads on a 1985 318 boat motor with adjustable rockers. I couldn't read the casting number, does anyone know how these heads would perform. The motor also had a steel crank, the guy that had it said I could take it for free. I have a 340 block that I was thinking it might work for.

I found some heads on a 1985 318 boat motor with adjustable rockers. I couldn't read the casting number, does anyone know how these heads would perform. The motor also had a steel crank, the guy that had it said I could take it for free. I have a 340 block that I was thinking it might work for.

The green paint on the springs was that from the factory. I seen another 318 the same way. Just wandering if you knew.

How much for the heads

Are they still for sale I still want them if u have them checked

I got a head last week and the guy said the same thing got it checked it was cracked. For that amount of money I would like to know. Do you have the shafts and rockers.

Have you had them checked for cracks

If u still have those on friday I want them bad have you had them checked for cracks

How much would a job like that run

Will these rods fit any 340

This head has a small hairline crack by the plug hole in cc can it be fixed

Thanks for the info

I got a x head today the casting number is 2531894-3. From what I could find these heads were made from 68-70. Does anyone know what the -3 stands for

What would you say a set 70 xheads be worth.

They don't have a j on them, the casting number is 3769974. I had a chance to buy some 70 x heads but, the guy wanted $600

The heads have no cracks and seem to be ingood working order. I cleaned up the inside of the ports. I going to upgrade to lunati valvesprings, and replace the rocker arms with stock replacements. Should I have the intakes cut to 2.02

I have new pistons they say 9.5-10.7:1 depending on the cc of the heads. The mopar guys around here say the heads are no good and my cr will be around 8. I'm on a budget build right now cant buy new heads.

I have a 69 340 block and a set of 1975 360 heads. I want to cut the heads to lower the cc. Does anyone know how much to cut of the intake, if I deck them 50 or a 100ths