Part 2 Chevy inline 6 head intake port lump installation 194 230 250 292

[peopleofthecircle]

Guessing it improves flow by 'spliting it'.

[snowman4839]

Great video tom. Is there a way to cover the top of the head bolt so that it's a smooth lump without having the head bolt head stick out?

[telowe2000]

Once the Premium lump is installed , the small bolt holding it is much less of a obstacle to air flow than the normally gaping hole as with the normal lumps.@snowman4839

[Bellefeuille66]

@snowman4839 google hi flow lumps and goto there website..ttom is using the standard lumps. hi flow also offers premium lumps with no headbolt interference

[telowe2000]

Yes, I do installation of the HI-Flow lumps or any other head work you need. Tom@12bolt.com

[sincityryder]

Could I send you my heads. And just pay you to do the job?

[boss1987221]

you forgot one VERY important thing and that is CLEAN THE METAL SHAVEINGS OUT OF THE HEAD!!!!!

[telowe2000]

@boss1987221 Very good catch on your part. You need to remember, the head will need to be reassembled and I would expect it to be cleaned at that time.

[citydriver]

wount that allan bolt head hinder flow?

[telowe2000]

@citydriver Yes it can, that is why We also offer the Premium Bolt In Lump Kit. It can be seen in my other video's

[itsjustasix]

The early Duggan head does not flow anywhere near close to what a Kirby head flows. The exhaust port flowed OK though.

Duggan sold the rights to those heads to Mike K & Joe Deppe.

Mike K has made several improvements of the head since he got the patterns from Duggan

So far,a guy in Brazil,has the Kirby head & w/7 psi of boost pressure made 700 HP to the wheels. To date,best run so far is 8.6 seconds in the 1/4. 250 CI.

[SuperInline6]

Great inline video. i live in Brazil and these engines are very popular around here. I run a 250 with a Isky cam and holley 600 d.p. My brither run a turbo 250. these bolt in lumps should work very well! Over 220 cfm is excelent flow for the ancient inline head!

[pete246]

The chev six is definately the king of the inline sixes. I'm an Aussie boy and they remind me of a big version of our Holden inline six [ 186 ci , 202 ci ]. Srangely enough one of the best flowing chev six heads came from ' downunder ' , the Duggan alloy 12 port. I believe these heads flowed similar on the flow bench to the sissell 12 port but had a vastly superior intake velocity which resulted in them making more actual horsepower [ as opposed to flow bench horsepower ]. Love them sixes !

[tifon128]

thanx for putinf somthing out for an inline i cant find anything for my 230 in my nova do you have anyother tips for performines?

[ryan9815]

5 stars! Hope to see more inline videos.