5ABIVT almost Alive !! Few sneak peak pics of the Motor !! :)
07-22-2011, 02:08 PM
#1
5ABIVT almost Alive !! Few sneak peak pics of the Motor !! :) Well the motor is almost complete. Awaiting on a dyno session where the motor will be broken in and datalogged with egt sensors in all the primaries as well as dual widebands. it will be setup and basline tuned as well. Obviously the tune will change in the car under a different load but the highly experienced tuner will be able to set all the tables for me. 8500 rpm engine dyno videos coming soon !
Few details.. 370 ci LT4. 3.625 stroke 6.2 rod Honda journal magnum xlxl (extra lightened over the xl) crank. Billet one off LS1 firing order (not 4/7) solid roller cam almost .700 lift . hollow valves and all the top of the line stuff available. The AFR elims were just coming out when I was rebuilding a new motor after my last one (388ci) blew up (shoppe left rocker nut loose so lash was very large, keeper broke dropped intake valve). i wanted to go with them but my shoppe that built my previous motor straight up told me I wasnt welcome there and neither was the car if I chose AFR heads
he wanted to hand port LT4 heads again for me but I wasnt prepared to wait another 4 years for him to finish another pair. First build was a great learning experience for me and Im happy the motor blew up. it wasnt good enough.
i ended up using GM LT4 castings again mainly because I already had them and because everything was a compromise with the LTX platform. My Cylinder head guy was telling me to just go 15 degree sbc heads converted to reverse flow but then the block can only be a factory ltx. Since Im running a gen 7 DFI with distributor I could have just went aluminum SBC gen 1 block with 15 degree heads and a sheet metal Hogan for a manifold which my cyl head guys told me would easily make 120+ hp over lt4 heads/intake. I shied away from it because I would have needed custom headers and get someone to machine the accessory brackets etc. All seemed intimidating to me especially considering I didnt have a local shoppe to deal with. I decided to see how much power I could make out of LT4 stuff and go with it.
Anyhow here's a few pics Im sure people will like !
Fresh block obviously 2 bolt main machined for 4 bolt splayed Program Engineering Billet caps at all 5 locations.
Crower Billet Maxilight w/upgraded bolts of course. Mahle Pistons. Lightweight pins wire locks etc
Callies Magnum XL with Honda Journals with extra lightening. i tried tp pay Callies to polish the whole thing but they refused. sigh
GM 21Xcc CNC'd LT4 Cylinder heads. Ferrea Hollow stem valves, Xceldyne springs coated, tool steel retainers and locks etc
Of course Morel hIPPO solid roller lifters. Mahle coated Pistons in block.
Crank in the block
Titan Billet Pro Gerotor oil pump and pickup.
Jeff Johnston Billet fab Oil pan for Gerotor pump. truly laughs in the face of the canton pan i used previously at least in terms of build quality. you get what you pay for !
I think ill call it the LT4s. Custom LS1 firing order billet solid roller. And fully lightened and optioned T&D shaft rockers.
Shafts on the Head
Cool shot of valve lift
Cyl head guys said my valvetrain will handle overrev to 9000 no problems Wont need to go that high ever lol.
Car is fully modded all around. Whole suspension. WHole braking system. Chassis. Drivetrain etc etc. All it needed was the Hear of a Lion and it's coming !!:canadaflag:
Few details.. 370 ci LT4. 3.625 stroke 6.2 rod Honda journal magnum xlxl (extra lightened over the xl) crank. Billet one off LS1 firing order (not 4/7) solid roller cam almost .700 lift . hollow valves and all the top of the line stuff available. The AFR elims were just coming out when I was rebuilding a new motor after my last one (388ci) blew up (shoppe left rocker nut loose so lash was very large, keeper broke dropped intake valve). i wanted to go with them but my shoppe that built my previous motor straight up told me I wasnt welcome there and neither was the car if I chose AFR heads
he wanted to hand port LT4 heads again for me but I wasnt prepared to wait another 4 years for him to finish another pair. First build was a great learning experience for me and Im happy the motor blew up. it wasnt good enough.i ended up using GM LT4 castings again mainly because I already had them and because everything was a compromise with the LTX platform. My Cylinder head guy was telling me to just go 15 degree sbc heads converted to reverse flow but then the block can only be a factory ltx. Since Im running a gen 7 DFI with distributor I could have just went aluminum SBC gen 1 block with 15 degree heads and a sheet metal Hogan for a manifold which my cyl head guys told me would easily make 120+ hp over lt4 heads/intake. I shied away from it because I would have needed custom headers and get someone to machine the accessory brackets etc. All seemed intimidating to me especially considering I didnt have a local shoppe to deal with. I decided to see how much power I could make out of LT4 stuff and go with it.
Anyhow here's a few pics Im sure people will like !
Fresh block obviously 2 bolt main machined for 4 bolt splayed Program Engineering Billet caps at all 5 locations.
Crower Billet Maxilight w/upgraded bolts of course. Mahle Pistons. Lightweight pins wire locks etc
Callies Magnum XL with Honda Journals with extra lightening. i tried tp pay Callies to polish the whole thing but they refused. sigh
GM 21Xcc CNC'd LT4 Cylinder heads. Ferrea Hollow stem valves, Xceldyne springs coated, tool steel retainers and locks etc
Of course Morel hIPPO solid roller lifters. Mahle coated Pistons in block.
Crank in the block
Titan Billet Pro Gerotor oil pump and pickup.
Jeff Johnston Billet fab Oil pan for Gerotor pump. truly laughs in the face of the canton pan i used previously at least in terms of build quality. you get what you pay for !
I think ill call it the LT4s. Custom LS1 firing order billet solid roller. And fully lightened and optioned T&D shaft rockers.
Shafts on the Head
Cool shot of valve lift
Cyl head guys said my valvetrain will handle overrev to 9000 no problems Wont need to go that high ever lol.Car is fully modded all around. Whole suspension. WHole braking system. Chassis. Drivetrain etc etc. All it needed was the Hear of a Lion and it's coming !!:canadaflag:
07-22-2011, 02:08 PM
#2
Short vid of my favourite pics and Dyno video (with cats that were later removed) and a 2nd gear blast through a tunnel turn it up !
http://www.youtube.com/watch?v=nwnL5ouKLno
turn it up !http://www.youtube.com/watch?v=nwnL5ouKLno
Last edited by Nastyc4; 07-22-2011 at 05:29 PM.
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07-22-2011, 02:58 PM
#8
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07-22-2011, 03:44 PM
#9
thanks for the kind words guys ! I'm definitely doing my best to make sure I have all bases covered with this build. My inspiration will always be having been in a Ferrari and hearing it scream. Ive had a few sportbikes (gxr 600/750) and loved revving the snot out of them. I love F1. Ive always been a rpm guy. I knew it would cost me and ive been in the doghouse the last 6 years with the wife because of it
My last motor blew up right after I got married saving for a house. Got a house and a daughter and another kid on the way soon so i took my time with this build. its been worth the wait so far
My last motor blew up right after I got married saving for a house. Got a house and a daughter and another kid on the way soon so i took my time with this build. its been worth the wait so far
07-22-2011, 04:34 PM
#10
Killer build, I love the attention to detail. LT4 castings are nice in the right hands, but I still would have went with AFR heads - JMHO 
.
Didn't see any intake mentioned. Supervic?
.Didn't see any intake mentioned. Supervic?
07-22-2011, 05:17 PM
#12
The internals on the crank actually dont change. The cam changes so that instead of a certain cylinder being on the intake stroke it will be on the power stroke etc and the computer will change injector firing etc. all this is programmable in my gen 7 DFI.
07-22-2011, 05:38 PM
#14
SO there I was not wanting to deal with tools like they were and LT4 castings in my hands I decided to just build off it. Tony was Great to deal with but the 195s I believe were coming out and 210s were later etc and I wanted massive heads.Intake is a hogged LT4
07-22-2011, 05:50 PM
#15
My future plans once this motor is running is quite different for the top end. I will have the cyl head guys do 12 or 15 degree SBC heads converted to reverse flow. I will do a Hogan sheet metal manifold with a removable plenum with absolutely giant volume similar to a E39 BMW M5 intake manifold that will mate to the spread port heads (not sure if spread port can be done havent looked into it yet). SInce I wa splanning to have EM custom make me stainless 1 3/4 to 2" headers I know they can probably do them spread port for me for the new heads. First this needs to get rolling though
07-22-2011, 06:00 PM
#16
My future plans once this motor is running is quite different for the top end. I will have the cyl head guys do 12 or 15 degree SBC heads converted to reverse flow. I will do a Hogan sheet metal manifold with a removable plenum with absolutely giant volume similar to a E39 BMW M5 intake manifold that will mate to the spread port heads (not sure if spread port can be done havent looked into it yet). SInce I wa splanning to have EM custom make me stainless 1 3/4 to 2" headers I know they can probably do them spread port for me for the new heads. First this needs to get rolling though
I've never used it, but from what I have seen the cost of the Hogans usually does not match up to the benefit compared to a MUCH cheaper ported single plane...
07-22-2011, 11:23 PM
#20
BADASS!!!! I love the car I like the idea of a 4/7 swapped 370ci LTx, I may copy your ideas here for my turbo build instead of a 383/388. But I'm a big fan on smaller cube motors for some reason, and the higher reving capabilities of your setup are simply awesome.
Great build, now post some more vids
I have been considering building a 377 ci gen 1 small block, but I guess I want to stick to the LTx platform. Even though a 88mm turbo hung on a 377 would be alot of fun, I guess I'll have to leave that one for my younger brother
I like the idea of a 4/7 swapped 370ci LTx, I may copy your ideas here for my turbo build instead of a 383/388. But I'm a big fan on smaller cube motors for some reason, and the higher reving capabilities of your setup are simply awesome.Great build, now post some more vids
I have been considering building a 377 ci gen 1 small block, but I guess I want to stick to the LTx platform. Even though a 88mm turbo hung on a 377 would be alot of fun, I guess I'll have to leave that one for my younger brother
Last edited by Turnin20s; 07-23-2011 at 11:35 AM.