348 Heads on a 409?

[RonJ]

Will these 348 heads fit on a 409? Facebook add claims they will. Cost was reduced $300 to $250. No plans as of now to buy just checking for research. (I just posted this and it didn't show, is there a delay?)

 

[Don Jacks]

Yes.What is the casting numbers,333? If so,they can be modified to make good power.What are your plans?

 

[RonJ]

I'll ask him and see if he replies. Bought a 1980 C35 Dually with a 409. No plans yet but may pull those heads to check condition and refurb. thanks

 

[oldskydog]

Look like 379's.

 

[SSpev]

Look like 379's.

yes. there is no chamber. not really worth about $100 unless they are ready to run. Just sold 2 sets of truck heads for 100 each.

 

[RonJ]

Thanks for the advice. Was thinking the same. Anyway, the casting number is: 876470. I'll look it up as well. The seller thinks out of 1958 truck.

 

[RonJ]

Here are the real numbers. 3764702 (was hard to read his pic). From online:

3764702.....348......60......Truck

 

[Don Jacks]

Ron,If the 409 in your truck was a truck motor to start with,it should already have 333 heads on it. I wouldn't ;ut 702's on anything expecting power.The 333's can be built to suppport 500 plus hp,but probally not a good plan for a workable dually.

 

[MRHP]

Yes, the 702 head is about the poorest head out there power wise.

 

[RonJ]

Good advice. I'll pass the thought of those up.