Hello,

I was curious if anyone on this board has done this with good results? I know this can be done and I've read SDSS website about doing this, but is it worth it? I have a fully ported set of w5's ready to go but I've stumbled on these w7's and there taunting me! Lol

The heads are middle generation Chapman Craftsmen truck heads. 10 bolt. 598 intake etc. if I do go this route I'd like to have someone hand port these heads to get best power from them.

These will be on a full drag effort build. No street miles.

I know with having someone notch the intake runners and proper offset of the rockers they will work. But is it going to worth switching from my w5's? What else do I need to know about switching these heads over?

Custom pistons are required, I was planning on doing that for the w5's so nbd. I know these heads oil through the pushrods. What lifters and pushrods would I run? Would I have to install copper tubes in the oil lifter galleys? Is that the easiest option when running a big roller like I have?

If anyone could walk me through the steps with this I'd really appreciate it. I'm not really familiar with the W 7/8/9 stuff.

Also I've attached a couple photos. One being of my heads. What rockers style does this head run and can I even get a set? They will be custom I'm sure with requiring so much offset or does someone have a used set sitting around?

I thought I was set on the w5's but I can't stop thinking about these w7's sitting in our shop lol.

Thanks for all your help and patience, Mark

I wouldnt waste the time or money on that.. put
the W-5s on it... find a 48* block for a max effort
engine
EDIT
I might even have a set of TD rockers for the W-7s

That's what I've been thinking too is finding a 48' block. But as we all know that's a problem lol. I'd be interested in those rockers if you do have them and want to sell?

Thanks, Mark

One name comes to mine BRETT MILLER.

I'll have to look.. I know at one time I did have
a set.. not sure if I sold them or not

Sounds good. Thanks!

Wish I had those W-7s on my 48* short block. I never stumble over anything. Lol.

I'm thinking run the w5's, and start to accumulate parts and knowledge for a nice w7 motor in the future. Do the w7 motor right the first time👍🏻

I USUALLY don't either lol. I'm the guy who always misses a deal by a day.😅

Me too. If you decide to unload them keep me in mind. I have a 380" shortblock waiting.

I do but it usually results in me falling in a pile of $hit.

Check the valve angle on those. There are a lot of variations on W7's. Also check how much the pads have been milled, who knows what setup was on there.

Will do!👍🏻

I will do that sir!

Is that bore under 4 inch looks tiny

Yes, it's 3.9 and change I can't remember exactly. Pretty crazy it's sat untouched this many years.

Siamese block??

I had a twin to that block that I ran my w5s on. No oil holes to the deck from cam, a factory oil hole drilled to the water under the factory oil filter hole, not enough crank counter weight machining, so the crank won't even drop in the block and a slew of other stuff, IF it is truly a twin to my block lol!.

Non Siamese block. It's a early R block not R3

Was your block a R3 block or R block? Thanks