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 Post subject: 377C dyno results
PostPosted: Fri Jan 25, 2019 4:13 am 
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Joined: Fri Aug 17, 2018 9:33 pm
Posts: 57
377C, offset ground oem crank, 5.7in chev rods
Hyper pistons, 10.2 compression
Tmeyer cam bearings, no other oil mods
CC 2V heads, 2.08 & 1.65 valves, comp 1830 steel rockers, cnc porting
Quickfuel SS680VS on RPM Airgap with 1 in spacer
1 3/4 headers, 3 inch collectors
Hyd. roller 231/239 @0.050 611/611, 110 lsa on 106 icl, morel lifters
463 hp @ 5700 & 452 ft lbs @ 5000
A/F 12.8 - 13.2

Was hoping for 450 hp, anything more was a bonus. Could've got some more maybe with a better spec'd cam but pretty happy with final result, should make for a fun street car with 5 speed manual and 3.7 rear.


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 Post subject: Re: 377C dyno results
PostPosted: Fri Jan 25, 2019 8:38 am 
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Joined: Mon Oct 29, 2012 9:05 am
Posts: 2593
Nice job.

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Brent Lykins, Lykins Motorsports
www.lykinsmotorsports.com
brent@lykinsmotorsports.com


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 Post subject: Re: 377C dyno results
PostPosted: Fri Jan 25, 2019 8:50 am 
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Joined: Wed Oct 31, 2012 8:43 pm
Posts: 328
I will tell you from experience, replace that 1 inch spacer with a super sucker, you will pick up some torque. it will make a difference in the seat of the pants for sure.

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Tim/Izzy


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 Post subject: Re: 377C dyno results
PostPosted: Fri Jan 25, 2019 11:03 am 
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Joined: Mon Dec 31, 2012 1:15 am
Posts: 97
Great job. Cam looks like it may be a Harold Brookshire designed cam. Looks like a fun build


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 Post subject: Re: 377C dyno results
PostPosted: Fri Jan 25, 2019 2:44 pm 
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Cheers guys, super sucker ordered!


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 Post subject: Re: 377C dyno results
PostPosted: Fri Jan 25, 2019 7:18 pm 
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Joined: Wed Oct 31, 2012 8:43 pm
Posts: 328
Now if you really want to see a change, probably don't have enough hood clearance, put a 4 hole spacer on top of the super sucker. I picked up a tenth off the 60 ft with that set up......

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Tim/Izzy


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 Post subject: Re: 377C dyno results
PostPosted: Fri Feb 01, 2019 5:58 am 
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Joined: Thu Sep 12, 2013 6:33 pm
Posts: 21
Nice street engine!
Did you rev it much past 5700RPM?

I've got an offset grind 4MAB that i'll put in a combo one day. Not many people bother to build the 377/8 any more, as the 393/408 kits are so readily available...


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 Post subject: Re: 377C dyno results
PostPosted: Fri Feb 01, 2019 7:57 am 
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Joined: Wed Oct 31, 2012 8:43 pm
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My first stroker cleveland was a 377, that thing would rev to the moon. Inmy cougar at 3500lbs, it would run 10.95. Great street motor...

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 Post subject: Re: 377C dyno results
PostPosted: Fri Feb 01, 2019 4:59 pm 
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Posts: 57
Took it to 6100 but cam was nosing off by then, stayed at 460 till 5900, 446 at 6000 and 426 at 6100, still reasonable power till then tho. Brent picked it would be getn near done by around 6000 so pretty well on the money there!
The only issue with the 377 is getting pistons I found, had forged ones and broke one and only just managed to find some hypers to suit, this was a few years ago and ACL had stopped making them.
Probably get some to suit in the states though I'd imagine?


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 Post subject: Re: 377C dyno results
PostPosted: Fri Feb 01, 2019 7:35 pm 
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No problem whatsoever getting pistons.

That was one of my cams?

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