516 head question

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The story on the heads is the local shop said he wants to do guides, seats, valves, the whole shebang 1500
He mentioned sbi and si and I wanted something a bit sturdier as I will be driving this like a maniac. Maybe not much racing but bagging and impressing are more my style. I hope the ferrea's will hold up. I did have a 289 that a guy here did with ferrea's and he showed me the stock valve open a bit and I couldnt see nothing. he did the same with the ferrea and I could see right out to daylight. He knew his stuff. Unfortunately he retired. I may try to track him down as he was a fanatic I couldn't imagine him not having a personal shop at home still.

I am building a 66 383 and have the 2315 forged flat tops. the shop said I would be good with those to at least .500 so I went with the comp XE274H-10
274 int./286 exh.
0.488 int./0.491 exh.
I hope thats gonna clear it with the 1.74

Sorry to highjack qkcuda but you all seemed so knowledgeable here I figured it was my best shot.
ezgif-6-d07336eca3.gif
 
Cartel said:
The story on the heads is the local shop said he wants to do guides, seats, valves, the whole shebang 1500
He mentioned sbi and si and I wanted something a bit sturdier as I will be driving this like a maniac. Maybe not much racing but bagging and impressing are more my style. I hope the ferrea's will hold up. I did have a 289 that a guy here did with ferrea's and he showed me the stock valve open a bit and I couldnt see nothing. he did the same with the ferrea and I could see right out to daylight. He knew his stuff. Unfortunately he retired. I may try to track him down as he was a fanatic I couldn't imagine him not having a personal shop at home still.

I am building a 66 383 and have the 2315 forged flat tops. the shop said I would be good with those to at least .500 so I went with the comp XE274H-10
274 int./286 exh.
0.488 int./0.491 exh.
I hope thats gonna clear it with the 1.74

Sorry to highjack qkcuda but you all seemed so knowledgeable here I figured it was my best shot.
View attachment 1716327161
Click to expand...
Sorry, I got really slammed today, I do have a head casting and valve ready to measure tomorrow morning.
 
well I got the tool steel retainers today. I might as well get the springs and locks coming before they jack up the prices for Christmas
 
Cartel said:
any update?

thanks
Click to expand...
On this one particular head with this set of keeper's, retainer and valve.
I'm coming up with 1.840 maximum installed height.
You'll probably have to get a set of + .050 keeper's to raise the retainer & get 1.890
.010 of more pressure won't kill your cam.
 
PRH said:
I can’t imagine that package of parts having less than 1.900” IH.
You’ll likely end up needing to shim to get there.
Click to expand...

Unmolested 452 head, Ferrea f5055 valve, comp 612 locks, comp 741 retainer, and also a comp 1730 tool steel retainer(the TS retainers have more installed height).
A-741 retainer(1.928”)
B-1730 retainer(1.978”)

**I have seen where there can be slight variances in IH for different batches of the same part number of retainers and locks.

IMG_3726.jpeg


IMG_3725.jpeg
 
Last edited:
PRH said:
Unmolested 452 head, Ferrea f5055 valve, comp 612 locks, comp 741 retainer, and also a comp 1730 tool steel retainer(the TS retainers have more installed height).
A-741 retainer(1.928”)
B-1730 retainer(1.978”)

View attachment 1716332811

View attachment 1716332812
Click to expand...
Yeah, there is probably something wrong on my part. Coming up with the numbers this head is giving me.
 
C- Ferrera f5055 valve, OE retainer, stamped 7* locks(1.889”)
D- stock replacement 4 groove valve, OE retainer, OE 4 groove locks(1.885”)

IMG_3728.jpeg


IMG_3727.jpeg
 
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