427 SBF

CompNut said:
It that fucking cam clearanced for proper end play yet?
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Spent about 45 minutes trying to sand .004" off the retainer plate.

I managed to remove .0005 in that time. Cast iron can kiss my ass. 4 places I called don't have the part in stock. The place that I know has it finally gets back from racing today so I'll have it coming soon
 
He doesn’t know it all. LS n/a et records were set with other people’s cam designs before he arrived in the game. Both with comp cams and cam motion grinds

My cam is 108lsa (243/250) comp custom grind and i bought it used from a guy with a n/a 6.2 ls3 and it made 500rwhp in his. He only sold it because he went to a whipple blown set up. It was a custom order cam and the valve events of it are very similar to the old thunder racing ‘t-rex’ cam (also comp lobes) which held the “cam-only” n/a 346ci ls1 record of 9.6 et in a 4th gen

Tooley has made a lot of good stuff for LS’s, but he’s not the be all end all and of cam designs tbh i haven’t seen one of his ls cams be anything that special, they are decent, but nothing record breaking
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I'll let you all know how my buddy makes out once we get a new cam, from another buddy of mine that specs cams! He has tried two different BTR cams so far, not too happy with their performance. Why he specs such a wide LSA because it is an LS makes no sense to me. A stock ECM fine. But once you have HP Tuners, or in our case a Holley setup, give me what works. Fuck that 112LSA bullshit. I don't care if it's an LS engine, SBF, or SBC, they are all airpumps and basically do the same damn thing.
 
89 Fox 427 said:
Spent about 45 minutes trying to sand .004" off the retainer plate.

I managed to remove .0005 in that time. Cast iron can kiss my ass. 4 places I called don't have the part in stock. The place that I know has it finally gets back from racing today so I'll have it coming soon
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Aluminum piston tops aren't much easier. 4 thou is a lot
 
I only have a 6.0 ls2. The same cam in a 400+ci would be much tamer

Mine idles at 1000. It just worked with power brakes without needing any extra vacuum stuff, just
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Mine idles at 850, with 268/276 on 108lsa and 50° overlap at .050
241cc intake runner and a single plane intake
Power brakes work, but it is a manual
 
CompNut said:
Which one of you Ford phucksticks are going to go up there and help the kid get this running? Some of us are getting old and would like see it hit the street before we are dead. :ROFLMAO:
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You sound like garyboyz on yb, I'll ask you the same as him, what have you done lately 😆🤣
 
I see we're still beating the fuck out of a dead horse.
Narrow lsa's are peaky, wide will work down low or up high.
And begin 😆🤣
 
89 Fox 427 said:
Spent about 45 minutes trying to sand .004" off the retainer plate.

I managed to remove .0005 in that time. Cast iron can kiss my ass. 4 places I called don't have the part in stock. The place that I know has it finally gets back from racing today so I'll have it coming soon
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Belt sander,
 
Chamfer bit in the router to get a rounded knife edge on the divider. Also did it on the intake ports, but didn't take much off there. Just for looks.



 
BOSS#1540 said:
I was wondering that, thought I saw both types for windsor. My torrington (for 351c 🤮) uses the factory plate but comes with tapered flush mount bolts.
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I stand corrected. I previously stated that this set comes with a retaining plate that houses a Torrington bearing. After looking at it again, I think it is as you mentioned. The bearing is pressed onto the cam sprocket and uses a regular style retaining plate.
 
Patriot Racer said:
I stand corrected. I previously stated that this set comes with a retaining plate that houses a Torrington bearing. After looking at it again, I think it is as you mentioned. The bearing is pressed onto the cam sprocket and uses a regular style retaining plate.
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I think fox said it has both
 
BOSS#1540 said:
Mine idles at 850, with 268/276 on 108lsa and 50° overlap at .050
241cc intake runner and a single plane intake
Power brakes work, but it is a manual
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That 268/276 @ .050 or advertised?
 
More numbers for your brain.

My promaxx heads average 81.28% intake/exhaust flow ratio.
 
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