Forged 396 Assembly, What do you think?
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Forged 396 Assembly, What do you think?
Basically this is the what VA Speed is wanting to build for me. What do you think?
Eagle 4340 crank 3.875 stroke
Compstar rods 6 inch
Mahle pistons
Rings
Bearings
Cam bearings
ARP main studs
Custom Comp Cam
Im gunning for or want about 550 at the crank. Anyone have similar build? I will search the thread to see but post if you got something in the 396 area. Tell me what you wish you did or didnt do with your build?
Eagle 4340 crank 3.875 stroke
Compstar rods 6 inch
Mahle pistons
Rings
Bearings
Cam bearings
ARP main studs
Custom Comp Cam
Im gunning for or want about 550 at the crank. Anyone have similar build? I will search the thread to see but post if you got something in the 396 area. Tell me what you wish you did or didnt do with your build?
Melting Slicks
Joined: Mar 2004
Posts: 2,141
Likes: 2
From: Pittsburgh Pa
i have a forged eagle crank, CAT h beam 5.7 rods and KB forged pistons and i am putting out 450+rwhp. all of the parts were from a motor i had build 10 years ago for my camaro but never got to use. so i put it in an LT1 block and bought some heads. don't you have LE heads? why not get another LE cam?
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
i have a forged eagle crank, CAT h beam 5.7 rods and KB forged pistons and i am putting out 450+rwhp. all of the parts were from a motor i had build 10 years ago for my camaro but never got to use. so i put it in an LT1 block and bought some heads. don't you have LE heads? why not get another LE cam?
I also do have a LE2 Cam. 226/236 525/525 111lsa I believe. But the builder said that Im getting a custom Comp Cam. Does that mean off the self custom or custom grind to my specs? That Im not sure of. If it comes down to it I may just get a LE3 type cam.
Pr0zac- That is right about where I wanna be maybe more if I can get more and still maintain decent streetablity. How does your setup feel? You like it? Any regrets? Idle quality? Hows your rear and tranny holding up(stock?)
Last edited by fc_soldier; Dec 9, 2009 at 10:42 AM.
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
Review my thread regarding my 383 build. Near stock idle / driveability, 24mpg on the highway, ~430 - 450hp at the wheels on a Dynojet dyno(measured 411 using a Mustang Dyno). Another good thread to review is that of BlackHarleyMan. It's a sticky. 396 build would be similar.
Be sure to have the crank checked. Mine was tapered. TJ Wong had this same issue with two LS7 Eagle cranks as well. I turned mine in the interest of time. TJ returned them to Eagle and his customer ultimately bought a Callies IIRC.
Be sure to have the crank checked. Mine was tapered. TJ Wong had this same issue with two LS7 Eagle cranks as well. I turned mine in the interest of time. TJ returned them to Eagle and his customer ultimately bought a Callies IIRC.
Melting Slicks
Joined: Mar 2004
Posts: 2,141
Likes: 2
From: Pittsburgh Pa
my car has been on the back burner for quite some time now but when i did drive it i was impressed with its power.. it was similar to my cammed lt4 on the spray. i have a 6 speed and its stock and an EM gladiator 44 with 4.10 gears. the nitrous was eating through posi units with street tires so i don't know how this will hold up. i never got to drive it with a spot on tune so i don't know how it would react normally but it had a bit of cam surge while trying to go slow in first gear. i know if it were an auto you would have never felt any of it. but i don't mind it being a little unruly as long as it performs. i haven't really had a chance to run it full out at the track or street in its current form, but i will be hitting the track next season as soon as it opens. at times i wish i went with a supercharger but that would have been way more money and i haven't had a chance to use the nitrous on the new engine.
Last edited by pr0zac; Dec 9, 2009 at 11:06 AM.
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Thread Starter
Melting Slicks
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
my car has been on the back burner for quite some time now but when i did drive it i was impressed with its power.. it was similar to my cammed lt4 on the spray. i have a 6 speed and its stock and an EM gladiator 44 with 4.10 gears. the nitrous was eating through posi units with street tires so i don't know how this will hold up. i never got to drive it with a spot on tune so i don't know how it would react normally but it had a bit of cam surge while trying to go slow in first gear. i know if it were an auto you would have never felt any of it. but i don't mind it being a little unruly as long as it performs. i haven't really had a chance to run it full out at the track or street in its current form, but i will be hitting the track next season as soon as it opens. at times i wish i went with a supercharger but that would have been way more money and i haven't had a chance to use the nitrous on the new engine.
Supercharger is alot more plug and play but I wanted to go N/A. Now on my dads vette we may do that route.
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Review my thread regarding my 383 build. Near stock idle / driveability, 24mpg on the highway, ~430 - 450hp at the wheels on a Dynojet dyno(measured 411 using a Mustang Dyno). Another good thread to review is that of BlackHarleyMan. It's a sticky. 396 build would be similar.
Be sure to have the crank checked. Mine was tapered. TJ Wong had this same issue with two LS7 Eagle cranks as well. I turned mine in the interest of time. TJ returned them to Eagle and his customer ultimately bought a Callies IIRC.
Be sure to have the crank checked. Mine was tapered. TJ Wong had this same issue with two LS7 Eagle cranks as well. I turned mine in the interest of time. TJ returned them to Eagle and his customer ultimately bought a Callies IIRC.
I will make sure the go thru the crank. With my luck I better make them lol
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
Much nicer piece, and not alot more money.
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Are we talking about the compstar or the dragonslayer crankshaft? If you can give me a part number that would be great. Thanks
Melting Slicks
Joined: Mar 2008
Posts: 3,022
Likes: 3
From: Chandler Arizona
However, with TJ's suggestion and the issues he's had with these eagle cranks (machining tolerances are not what they use to be i guess), i'd go with compstar (callies) hardware.
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
I don't have a part number handy, but it was the Callies Compstar, 1 pc seal, and used a 5.85 rod. I used that crank in Beppe's 396 (Conv90), and he has been running it hard for a few years.
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Im going to try find the one your talking about.
Le Mans Master
Joined: Feb 2005
Posts: 5,146
Likes: 3
From: The Motor City
I have compstar rods and crank in mine and for the money it is a good crank.
http://www.compstarcomponents.com/crankshafts/sbc.htm
http://www.compstarcomponents.com/crankshafts/sbc.htm
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
I found this one on ebay
Forged 383 racing rotating assembly for LT1 LT4 and all late 1 piece seal blocks
Compstar Forged 3.750 stroke crankshaft
Compstar Forged 6" H Beam connecting rods with ARP2000 bolts
MAHLE Powerpack forged Flat top coated piston kit
MAHLE file fite ring set
ACL Race engine bearings
Fully Balanced
for $2000
Forged 383 racing rotating assembly for LT1 LT4 and all late 1 piece seal blocks
Compstar Forged 3.750 stroke crankshaft
Compstar Forged 6" H Beam connecting rods with ARP2000 bolts
MAHLE Powerpack forged Flat top coated piston kit
MAHLE file fite ring set
ACL Race engine bearings
Fully Balanced
for $2000
Melting Slicks
Joined: Dec 2001
Posts: 2,437
Likes: 1
From: Gainesville Fl
http://www.tpis.com/LT1-lowres.pdf
that setup is almost exactly 550 crank. i know you arent using AFR heads but the cam may not be a bad choice. i would love to see someone replicate this setup with possibly bigger injectors(42s), TB(monoblade), advanced induction ported edelbrock LT4 intake and a set of exotic muscle 1 7/8" headers. i think that would put you very near 600fwhp with great street manners.
that setup is almost exactly 550 crank. i know you arent using AFR heads but the cam may not be a bad choice. i would love to see someone replicate this setup with possibly bigger injectors(42s), TB(monoblade), advanced induction ported edelbrock LT4 intake and a set of exotic muscle 1 7/8" headers. i think that would put you very near 600fwhp with great street manners.