Dirty 318 build

[nvrbdn]

question guys. im not a small block guy so i dont know. will a 360 intake work on a 318 motor? a friend asked me cuz he can get it free for his truck.

[elacruze]

question guys. im not a small block guy so i dont know. will a 360 intake work on a 318 motor? a friend asked me cuz he can get it free for his truck.

The short answer is that a pre-magnum 360/340 manifold will bolt on to a 318 but you won't like it. The 318 ports are much smaller and spoil the manifold air velocity.

[elacruze]

  Would you be able to get a 360 flywheel for a truck application? My 87 ram 250 has a stock 360 4spd in it. Should already be balanced appropriately.?

Don't know. my '68 uses a Hemi style direct drive starter. I have to find out exactly what the differences are.

[Challenger340]

Just a thought, not trying to ruin your project, but I'm just curious as to the Cost/Benfit factor on this 318 build, with a 360 Crank in the 318,
as opposed,
to simply installing the 302 Heads on a "re-Ringed" low pop 360 ?
Re-ring kits are cheap, the only extrenuous Monies would be in re-Balancing your "0" 318 flywheel, to "external" to work on the 360 ?
that,
or simply obtaining a good running 360 shortblock candidate(save the re-ring), then applying the 302 Heads, same as the above ?


Waaay back in the Day, we're talking BEFORE there was Forged Pistons available for 360's, we stuck re-worked 340 Forged Slugs in 360's.
It involved Milling the 340 Tops, re-flycutting already "thin" tops,
AND,
Re-contouring the Skirts on the 340 Slugs to clear the 360 Crank Counterweights ?

Just pointing out,be careful to check the 318 Pistons for interference with the 360 Crank Counterweight ?
if you proceed with this idea as I suspect you will encounter the same problem ?

Bob out.

[elacruze]

Thanks Bob,

This is exactly the sort of information I've been hoping for from the beginning, to keep this 'simple' project from turning into an expensive Frankenstein's monster.

I'll likely just keep it at 318, then. It is only a pickup, after all.