Huron twin turbo 64/67 turbos

5.3 alum truck block (free, bought complete engine for 400 sold 799 heads for 400)
l8t forged ccw crank ( requires 8 bolt flexplate, cheap too at 384 )
boostline 6.125 rods ( not cheap at 1300 on black friday but very strong rod)
1/2 studs
main studs wit pinned billet mains
fire hoops hg rings
custom diamond pistons / rings (will be pricey but l8t crank requires custom pistons)
johnson link bar lifters
ti intake 2.0 asa valves 1.55 iconel exh valves ( have them already)
btr stg 3 turbo cam
ti retainers 660 springs
btr push rods
btr shaft rockers
btr intake
big 103 tb

need this engine to make big power on e85 5500-7500 (hold big boost until speed and revs)

lower boost and timing on pump gas for when e85 isn't handy May go flex fuel with haltech nexus

limiting factor is 4l65e which can be built to 1000-1200 hp
hoping 3rd gear lockup clutches and only pouring on power with sspeed will help it live
thinking of 3rd gear lockup with simple deadmans switch to lockup as power comes on

looking for good shifter options with switch for lockup and positive 1-3 shifting ( no 4th as it will burn up with this much power)

scrounging where I can and any feedback is welcome

 

Don't forget lash caps for the valves! Build sounds solid man, can't wait to see you get it done.

 

I have block, crank and rods,

scrounging up parts asap

have some 6 bolt heads I may port for the t and iconel valves along with btr kit

go fast for cheap - boost a muv

 

Sweetness!
best to you!

 

did some research on the nexus r3

it has all the nice features of the r5, will control my tranny, and has some nice features and wiring support

I hope to use it, it has some very slick capabilities

 

the ls6 heads I have are the thick deck cathedral port heads

I have some nice TI intakes and iconel exh

lookinf to pick cam (maybe btr 3) and run btr TI retainers and springs stiff enough to trun up revs

looking at manton roller rockers vs btr shaft rockers

 

I dig the L8T crank.

What is needed to make that crank work? I remember reading something about it but it was two years ago at two am and the details escape me.

 

like the LSA crank ( also cheap forged ) it needs 8 bolt flexplate

already have one as you know LT8 is uber strong forging with ccw

has been used in 2k plus builds I plan on around 1400

can only pour it on in 3rd and locked up

lt8 cranks are new cheap and strong

new moto go fast for cheap but at least go fast

lt8 crank is a drop in for ls blocks with a bit more stroke at 3.84

makes a small bore back into a 350 with just a bit more stroke to get the heap moving

thinking of going to a 3.15 rear for long strong pulls

I have one already

 

Why not make your life easier and run less stroke, a smaller cam, and throttle body with more boost? The turbos should be perfectly capable, and you'll have something that's much easier to handle in traffic. Let the boost control do the work between pump gas and E85.

 

what cam do you recommend? I have a Dr Phil cam that worked very well with the auto and stall and the ttix kit,
not sure of specs I need to measure it

maybe I should just stay with that is it was very streetable with 3200 twin disk lookup


I have dial indicator and can set it up to get some close readings

I do plan to run e85 and have to somehow keep in mind this primarily a street sweeper

 

Being honest, if I knew my build would end up as a TT car I would not have stroked it and would have done as above and relied on boost for power. I am using a rough equivalent of a Stage 3 cam custom grind and would nominally opt for lower specs except I have no experience with a stroker OR turbos yet so I am going to see how it runs/tunes first. Later I may reduce it. Or I may swap the longblock to a different build in the future. Unknown. I still have an LPE kit which needs a home in the future as well.

 

I have a brand new - in the box - BTR stage 4 turbo cam. You want it? I realize it’s likely more than you’ll want, but thought I throw it out there anyway…

 

It's still s little 350 with the small bore 3.8 and the 3.86 l8t crank the crank was both uber strong and uber cheap

as I understand you need 8 bolt fw or flexplate and also to get mast lower timing chain gear which has been machined a bit

I think other than the crank snout and 8 bolt rear flange dimensions are similar the iron blocks may need just a bit of clearancing

we'll soon see with the 5.3 the CCW cranks run smother at high rpms which will be the plan

need to get a tight powerband of about 5-8k

 

I'm not familiar with whatever that cam is, but my general thought process on street turbo cams is "less is more". I run a BTR stage 1 v2 cam in my LS3 TT car. (217/23x, negative overlap) It's pretty easy to add 1 more PSI with turbos to get the flow you want for top end HP and not worry about cam overlap driving bad behavior in traffic.

 

this z06 is converted to a rpm 4l65e too but I need a healthy cam to make power in the 5-8k range

looking at intake manifold options and use the ls6 on something else

I wish they made lt8 crank in less stroke but it's a gm truck crank and very cheap and very strong and the ccw cranks do better at high rpms

I paid less than 400 for mine and though christmas came early compared to dart ccw and other crank options

the lt8 represents huge value and strength with it being proven up around 2000 hp

engine will have plenty of power and holding back the big boost is important to make it live in the upper rpm range

I'm thinking of going with a bit more stall and multi disk lockup

It will help the combo out and hopefully get the 4l65e to live longer

can't afford the 4l80e swap, too much coin

I have a 3200 twin now but a bit more stall would get things moving and spool better

 

geez i Need to budget around 1500 or so for higher stall muti disk convertor
nexxus r3 is around 3k.
I need that as it also controls the tranny and has some power distribution features along with great engine management
custom pistons around 1200 or so
small bore ls9 gaskets may get the nod although the top fuel rings sure look nice
I have to be realistic and this a 3rd gear rolling street sweeper
the RPM tranny may get the nod and save another 7k or so on a stronger build
3rd gear lockup is where it's at to hold the big power
I will be rolling and revving by then
I won't be doing too many drag strip runs with this one
as the tranny won't hold it. Not for long anyway

 

Rebel won't cut it vs R3? Half price. Minor differences. When I get to my pc I'll post an excel comparison of them based on info I found on the website, install file, and HT vids on yt.

That said, I also went R3 over winter.

 

haven't looked a rebel close enough

it probably would

but the r3 for sure does

 

Haltech comparison.

They had it between all others but did not have the Rebel represented to I sought out confirmations. Anything yellowed out is unconfirmed. Maybe yes. Maybe no.

 

Just had this show up for the next phase of my build. Pumped to rip out all the oem wires and start from scratch. I considered R3 + PD16, but ultimately YOLO'd to R5. I'll likely end up adding another PD16 to handle rear of car anyway.