I'm thinking these will be shipped to me when done.
WoooooHooooo!

https://www.facebook.com/permalink.php?story_fbid=1120574778075029&id=503146179817895

Keep us updated!!

My bowl blended/port matched set of SB Sidewinders just arrived at my UPS store this morning. I will pick them up after work today.

So... I looked at the pic & the caption... and my very first thought was: WHY is he removing the guides on a new set of street replacement heads?

Were they junk right outta the box?

Is the person doing the work going to set them up for valves with thinner stems?

Is this person going to port them with or without new guides in the heads? If without, how can any progress checks be tested on a flow bench when the valves can't be installed?

Either I'm simply missing the rest of the story, or this porting job is starting off in a very unconventional manner.

It's how you get access to the bowl behind the guide.

Or you can use the appropriately-shaped carbide burr w/ a 4-6" extended shank like 99% of the rest of the people porting heads by hand do.

I guess that's the poor mans "pro port" head.

Maybe he is going to put it on a cnc machine before he hand finishes the porting??

Yeah,
I would think he knows a thing or two about cylinder heads.

Larry Smith

So whatcha got as a review?
Like what you see?

So far, the quality looks very good. I do not have my head gaskets yet, so I can't move much farther except for checking my rocker arm alignment (tomorrow). It looks like stock type head bolts will work (except additional [2] 4.5" long bolts), but my spark plugs from my old iron J's do not work in these heads. So I will need to find out the type of plugs that are required.
The heads have been hand-stamped with a number, so it appears that they file the info on each set of heads. The push rod holes are the same diameter as the stock heads. Comp springs/retainers and 10 degree locks.

yea, dont you worry, Larry aint no dummy...he isnt some Johnny Come lately on heads.

Here's Johnny. Larry does some very nice work and you should be pleased. Goodluck on your builds

LOL...I forgot we had a Johnny head guy!...lol...how you makin out?

I am gonna try to send you a PM this weekend if I get time.

Doing OK Todd but kinda took a step back from racing for a little break. Powerglide issues kicked my butt having to pull it in and out 6 times. LOL. I bought some "fishing worms" now I got to go use them.

When I was still doing port work, on twin cam Harley heads I would remove the guide to do my porting, was replacing them anyway, stock heads 2.12 valve & larger seats 328 cfm .650 for steet use.

Does anyone know what these SB heads flow...
both ported and stock... also does anyone know
what the valve length is.. thanks

The Sidewinders start with the Promaxx castings. I have attached the flow chart.
Todd has them ported to the customers needs. I am waiting on the flow numbers for my bowl ported version, and Prochargedmopar is having his fully ported soon.

Thanks

Given the reasonable $ on used NASCAR 7mm Ti valves, I've been putting new guides (and sometimes seats) in a lot of heads.

Now I just need to find a guy with one of those Newen single point valve machines to adopt me, lol. S/F....Ken M