project89

iTrader: (1)

8 nozzle wet kit , im still trying to decide which way to go , but if i leave the turbos ill use the kit for a progressive 100 shot

project89

iTrader: (1)

looks like the heads will be here on friday, i also said hell with it and ordered up a set of 10cc dished pistons ,with a .015 shim type gasket i will have 9.1-1 compression with the 64cc heads

next week i will order up a set of 4340 bushed rods , head studs and the remainder of the head hardware i need to finish assembling the heads , along with a push rod lenght tool

project89

iTrader: (1)

did this a few days ago

even though its not going back on the motor i deceided to port it







still alot of work left on it , im either going to sell it when im done ir replace the tbi on my truck with it

lb9 GTA

What did you use in terms of bits or sanding rolls to port the TPI?

project89

iTrader: (1)

just some assorted shape standard carbides , im waiting on 2 8inch long carbides so i can reach all the way into the port

ill finish it with some 60 or 80 grit sanding rolls for the proper finish

project89

iTrader: (1)

heads are here

zz17iroc

iTrader: (4)

What size are those heads?

project89

iTrader: (1)

200 cc runner 64cc chambers , can be had with straight or angle plugs , and also 2.05/1.60 valves or 2.02/160 valves

i went for the angle plugs and ill be running the 2.05/1.60 valve combo
399$'s shipped to my door bare for the pair , they look great as cast , but im going to do some very very mild cleanup on them

zz17iroc

iTrader: (4)

Okay, they have some potential. But don't go crazy with porting, just use sand rolls/ flap wheel to clean up the casting flash no cutting and make sure you unshroud the intake valve after pressing in the seats.

project89

iTrader: (1)

that was the plan just clean up the tiny bit of casting flash , deshroud the valves and bolt them on , seats are already installed and have 3 angle grind on them
they already flow 260cfm @ .500 lift and with the turbos theres no real need to port them any further

hell these things flow more at .300 then my old ported heads did @ .550 lift

zz17iroc

iTrader: (4)

Okay my bad, I didn't look close enough. But for sure unshroud the valves.

project89

iTrader: (1)

so ive been doing more in depth research now that i have the heads in my hands, taking measurements and comparing these heads to a big brand name head that they are rumored to be copys of

these heads are infact dart pro 1 platinum copys , and can be ported out to flow well over 300cfm

project89

iTrader: (1)

i didnt exactly have the right gaskets on hand , but this is with a standard rebuilders gasket







lol those heads and valve covers will dwarf a tpi intake





theres just enough meat on the tpi intake to seal up the port but not by much

will it work with a standard sbc intake ...... u would have to check each intake to see if it would seal, the tpi does seal but i wouldnt use it , i would deffinatly get a votec tpi base or other vortec or raised runner intake

im going to send back my standard hsr for a vortec hsr , though im still debating on a single plane efi and elbow or 4bbl tb setup

Dakota W.

That's why I had to go carb'd with my new motor, which was a pain the butt to change everything over instead of reusing the TPI stuff...Didn't seal completely...

project89

iTrader: (1)

luckily i was going hsr anyways , but if i had to i think the tpi would just seal up , its deffinatly close

but putting tpi back on the motor with these heads would make no sense at all , it would just neuter the engine ,
anyways my pistons will be here today , then ill take the rods and pistons upto the machine shop to have the new pistons put on, if my current rods need any form of work im not going to reuse them.i will buy a set of bushed rods and the spirolox for the pistons

project89

iTrader: (1)

yay new pistons showed up almost time to get the motor 100% back together

hyper piston with 10cc dish , i need to knock off the sharp corners were the inner dish meets the valve reliefs as they look like a prime edge for a hotspot to develop

willexoIX

Looks like a good build, Can't wait to see how it turns out. And you have made up my mind for me on paint choice. All satin black, with my black plasti-dipped wheels, stealth

IrocRoadRacer

Are you using hypereutectic pistons for a turbo setup?

project89

iTrader: (1)

always have , havent broke one yet

IrocRoadRacer

You are very lucky then. I never use that type of piston after something went wrong breaking in a 450hp big block motor. Moments after breaking in the motor at a standstill, I went driving on the highway. When I went to pass someone, the car backfired really bad then stalled.I pulled the heads off a day later, and found that I was missing a chunk from one of the brand new speed pro pistons. I use that piston as a paper weight and a reminder to never buy hypereutectic pistons. I wish you the best of luck.

IrocRoadRacer

The hypereutectic paper weight is attached.

zz17iroc

iTrader: (4)

That maybe the case, but your still playing with fire and there is always a first time for everything! Remember what happened to Sailtexas? https://www.thirdgen.org/forums/powe...-z28-c-11.html

sailtexas186548

iTrader: (2)

I remember! LOL

I tore that engine down recently and have done some failure analysis. I cansay with 95% confidence that it was a rod failure. More specifically the rod yieldedfrom too much cylinder pressure (brake boost at a low-ish rpm and a boostspike). The piston did shatter like glass, but it just fell out of the bore and got beat up by the spinning crank weights and part of the rod still attached to the crank. The way the rod failed was a buckling failure, not shear/bending.And it failed in the obvious buckling critical area.

With that said, if I was building a new engine from scratch I would NOT usehypers to allow a little more forgiveness with the tune and the cost difference is laughable once your that far in, but I don’t think theyare that bad if your tune is good and you’re not making stupid power.

project89

iTrader: (1)

i am very well aware of the risks , but a hyper piston is good as long as ur tune as good
this engine will be capable of making stupid amounts of power , but my build costs are so minimal its worth the shot . this will be the most power ive tried hyper pistons with. i have a feeling i will break the rods or crank before the pistons

sailtexas186548

iTrader: (2)

It will be interesting to see how much power you can squeeze out of an $89 set of pistons. Think you will make it to 800FW reliably?

project89

iTrader: (1)

i have no doubts it will make the power , reliably on the other hand probably not so much lmao, but im ok with that this thing is so damn cheap i really dont care

its cheap enough if i get a year out of it ill be super happy

Street Lethal

iTrader: (16)

Sure looks purty, approximate date for first startup...?

project89

iTrader: (1)

its going to be a lil while still waiting on some engine parts , then after that ive got the fuel system to worry about

im hoping for the end of feb, i only get to work on this thing 2 weekends a month

project89

iTrader: (1)

anyways these are the headers im going with , the logs prolly would have done it , but im building the turbo system so it can be transfered over to the 427 down the road and support the power that will make







i was going to build my own but for the price of those and how limited on time i have been latley im just going to buy them

Badass355ciz28

iTrader: (17)

whats the cost on those? they look decent

project89

iTrader: (1)

399$ shipped

1.650 primary and 2.5 merge/vband

project89

iTrader: (1)

new parts including shipping
pistons 93.96
heads bare 399.00
perfect circle moly rings 23.74
valve covers 50.26
1.5/1.6 rockers 50.00
cam and lifters 103.97
engine gaskt set 71.24
main/rod bearings 45.00
spiro lox 39.99
scat comp rods 299.99
arp headstuds 99.99
fuel rails 54.99
2.02/1.60 valves 99.99
springs/locks/ret 64.99
studs guideplates 30.99
vortec hsr 365.00

total = 1829.10

missing are some misc items like pushrods , and machine work
pushrods have not been ordered yet as i have to check lenght and machine work comes in around 300 bucks

junkcltr

iTrader: (1)

Lookin' good.
Where yout getting the studs & guideplates from?

Those heads drilled for the vortec bolt pattern?
What intake gaskets are you going to use? GM or one of the FelPro flavors.

project89

iTrader: (1)

the studs and guideplates i picked up locally from a friend who had a new set laying around

the heads are drilled for both the vortec and standard pattern intakes , going with the felpro gaskets , as the port is larger then a standard vortec

junkcltr

iTrader: (1)

Felpro makes a few different sets for the vortec. I think the best ones only come in the top end pkg kit. Some have discussed the 1255 gaskets failing and leaking coolant.

I am going with some low budget vortec heads so I did some research and that is what I found. It may be incorrect.

project89

iTrader: (1)

the 1255 will have to be trimmed to fit the port on these heads , i still need to look into the gaskets and see which one is the closest fit

port is 2.10 x 1.18 before porting

the mr gasket 136g looks promising

its
2.30x1.31

a lil thick at .125 though

junkcltr

iTrader: (1)

As much as I like the flow characteristics of the vortecs. As much as I like the raised ports.
I think the 4 bolt intake pattern sucks.

I debated buying a vortec single plane and installing EFI on it, or buying Gen 1 single plane EFI and drilling vortec heads for Gen 1 intake and hoping that there would be enough meat at the top of the port to seal. I decided on getting a single plane vortec but not sure it was the right decision. I am drilling the vortec heads for Gen 1 intake just in case.

Would the china single plane EFI intake Gen 1 fit your heads (meat at top of ports)?

project89

iTrader: (1)

thats what i like about the hsr plenty of room to drill out the 4 center holes, which i belive im going to do, pretty easy to do since these heads are drilled with both patterns

project89

iTrader: (1)

ordered up the stuff for the block fill going to do a half fill on it

connecting rods/valves, new valve springs, spring seats , retainers, should be here mid next week

wont be long now before this thing is together

i also ditched the .550 springs im going with a .650 lift spring since i know im going to swap cams again down the road

project89

iTrader: (1)

long block is together minus pushrods and timing chain but i scored a great deal on a manley wet belt drive so gota wait for that to come in
also waiting on verification on the 7qt oil pan i have in mind to see if it will fit


wont be long now boys

Dakota W.

Why a belt?

project89

iTrader: (1)

cause i got it for the price of a good dbl roller set , not to mention a belt is leaps and bounds better then a chain. if nothing else ill turn around and sell it for more then i paid for it

Dakota W.

Mind explaining those leaps and bounds? My Cloyes double roller was only $25.

1991sleeper

iTrader: (-3)

My billet double roller was 60$ I think mabey more

Sent from my XT907 using IB AutoGroup

Dakota W.

And you need billet gears why?

1991sleeper

iTrader: (-3)

Why not ? It was summit brand billet double roller and was about the price of the name brand non billet... and they were really nice pieces .. with 8 degrees of can advance OR retard at the crank keyway ...I didn't skimp on parts for my build even tho its fairly mild I also went with a summit sfi balancer ..

Sent from my XT907 using IB AutoGroup

Dakota W.

Waste of money on a stock LO3 that probably isn't even putting out 200hp.

1991sleeper

iTrader: (-3)

Not stock .. try 370 HP @ 6000rpm
U can check my build thread titled LO3 rebuild (Hp estimates)
Sent from my XT907 using IB AutoGroup

Dakota W.

Your signature says stock, even still, 370 isn't that much.

1991sleeper

iTrader: (-3)

For a 305 that's pretty hot. ... and that signature is about 2 years old the motor only has 1000 miles on it if that just got it pit in a couple months ago and I have a 150 shot waiting to go on it

Sent from my XT907 using IB AutoGroup