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Re: 4.8 stroker build

Posted: January 31st, 2019, 7:43 pm
by cal
Wait what


Why

Re: 4.8 stroker build

Posted: January 31st, 2019, 8:51 pm
by cal
NM. Misread.

Re: 4.8 stroker build

Posted: February 1st, 2019, 4:34 am
by SkylinesSuck
I'm still confused like you were before re-reading. Help?

Re: 4.8 stroker build

Posted: February 1st, 2019, 6:20 am
by cal
He was deshrouding the area around the valves. He just worded it weird and scribing the 4" bore was confusing, but makes sense to me now.

Re: 4.8 stroker build

Posted: February 1st, 2019, 9:54 am
by SkylinesSuck
I'm tracking now. Thanks.

Re: 4.8 stroker build

Posted: February 2nd, 2019, 6:20 pm
by GreenYJ
Sorry. That was the best way I could come up to describe it at the time. I didn't take a picture.

I bolted the head to the bare block. I then reached up into the cylinders from the bottom with a scribe and marked the cylinder head where the 4" bore meets the cylinder head. The flat surface of the head was hanging in the cylinder all the way around the bore. I left the 2 quench areas and unshrouded the valves out to the scribed line. I hope that makes better sense.

Re: 4.8 stroker build

Posted: February 3rd, 2019, 2:43 am
by SkylinesSuck
At first glance, I think we both read it as you were going to remove material from the head everywhere inside the scribed line including the squish pads.

Re: 4.8 stroker build

Posted: February 12th, 2019, 4:30 pm
by cal
^^ exactly. it was the scribed line that confused us. totally makes sense though looking at it now.

Re: 4.8 stroker build

Posted: March 1st, 2019, 6:46 pm
by GreenYJ
Started roughing in the head ports.
20190228_193922.jpg

Re: 4.8 stroker build

Posted: March 1st, 2019, 6:47 pm
by GreenYJ
20190228_193932.jpg

Re: 4.8 stroker build

Posted: March 1st, 2019, 6:49 pm
by GreenYJ
Closer view of combustion chamber.
20190228_193938.jpg

Re: 4.8 stroker build

Posted: July 20th, 2019, 2:32 pm
by Xtultegra
Very cool. Thanks for sharing!!

Re: 4.8 stroker build

Posted: February 2nd, 2021, 8:29 pm
by GreenYJ
:wiggle: No, my project is not dead, but I have come back around to it. Making progress again on the cylinder head. Initial flow numbers look good. I need to blend the bowls after cutting for bigger valves and see if I can increase exhaust flow. I did notice the swirl was low and surging from .200 to .400 lift. I hope to rectify that before finishing.
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Re: 4.8 stroker build

Posted: February 2nd, 2021, 8:31 pm
by GreenYJ
20201125_214221.jpg

Re: 4.8 stroker build

Posted: February 2nd, 2021, 8:31 pm
by GreenYJ
20210202_221000.jpg