project89

iTrader: (1)

so with winter finally here its time to get to work on the tt iroc
first paint the engine bay then
#1 new trans
#2 new engine
#3 larger turbos
#4 remove triple zr-1 pumps and install twin areomotive 340lph pumps
#5 install -8 fuel lines -6 return
#6 replace rear pinion seal
#7 install frame connectors
#8 finally get my 10 pt cage installed
#9 finish the paint job


this was taken this morning

and 45 mins later


taking a small break then im going to remove the old engine , and start tearing down the soon to be new engine

ill have pics up in a few hours as work progresses

timeline for everything to be completed on this lil project is 3-4 weeks

project89

iTrader: (1)

i mannaged to get the motor out and the engine bay stripped but stopped taking pics after i started tearing down the engine , ill take more when im back in the shop later this week.

the engine looks brand new inside still even with all the abuse i put it threw, i was starting to show some signs of detonation though i think the popup dome pistons are to blame for that , im going to install new bearings in the bttom end reassemble it and put the engine minus the turbos into my 3/4 ton truck to replace the semi tired tbi engine


the new engine going in the car is a
4 bolt main 350 .030 over
flat top forged pistons with 4v reliefs
this one will also get a sum 1105 cam or a comp xe268
picked up a mini ram intake thats going on it
im not sure what heads im going to drop on it yet,i have a few diff heads to choose from
then the old turbo system will be put on the engine


anyways heres some more pics of the days progress






overall i have about 4 hours in it from the time i pulled it in on the lift dropped the trans, then pushed it off the list to the chain hoist got the engine out , and tore down the old engine

pretty productive day for such short amount of time

Drac0nic

Wish my days were that productive. Think I'm going into hibernation up north here. Will be very interesting to see what the Miniram does for you. I mean, you basically had a stock TPI right?

project89

iTrader: (1)

besides some very basic port cleanup yes it was pretty much a bone stock tpi

and to correct my previous posting its a stealth ram, im hopping it will allow me to get the rpm i want out of the new setup

project89

iTrader: (1)

the new motor im tearing down and refreshing to go back int he iroc

and low and behold its not close to what i was told it was

its not bored .030 over had mismatched rockers and pushrods in it and a nice lil surprise on the number 2 piston



other then that the rod and main bearings were perfect ecept for the number 2 top half ,but not a mark on the crank

IROCgiraffe

iTrader: (3)

subscribed.

lb9 GTA

Subscribed. I'm assuming the new engine is also a 350.

IrocRoadRacer

Wow! Was that piston damage due to something loose in the cylinder, was it because of the wrong plugs being used, or was it due to using boost on the motor?

project89

iTrader: (1)

4 bolt main , forged crank , basically going to be the same as my old engine minus the domed pistons, old engine was a 355 , this new one is a std bore 350


looks like something got loose in the engine at some point , it has no cyl wall damage , and no damage to the head that was on it

it apears to either have been a piece of porcelain from a spark plug or a very tiny screw

theres a part number on the bottom of the piston so im going to order 1 new piston if i can, if i cant im going to file off the high spots and see just how bad the damage is , pistons are 0 deck so i can always machine 5 thou off the tops if need be

Dakota W.

subscribed...I wish my days were that productive, but whatever can go wrong does go wrong with my car.

project89

iTrader: (1)

i got alot done yesterday , and i dub this new engine cheap thrills

anyways heres my progress

first up the crank shaft which is in perfect condition its already been cut .010/.010



did a basic cleaning on the block and pistons




not sure what im going to do with the one damaged piston yet , i did file off the high spots i may just stick it back in


and some other pics of the tear down

project89

iTrader: (1)

cam , rod/main bearings , rings , gasket set , hone, ring compressor , pushrods, and split set of full roller rockers ordered

IrocRoadRacer

I like this thread, it makes me want to build a motor, which is something I enjoy doing. Keep the pictures coming.

project89

iTrader: (1)

im seriiusly starting to rethink my cam selection , i ordered a comp cams xe268 , im starting to think i should have gotten the summit 224/224 for this engine

junkcltr

iTrader: (1)

Tough call on that. I think they are so close that it won't matter much. The 110 LSA will just "hit" a little harder. Idle will be a little more work to tune depending on injector size and firing scheme.

Looks great so far. How sharp are the edges on the piston marks? Any sharps edges to cause hot spot detonation? I don't think so but just asking.

project89

iTrader: (1)

nope i filed them all flat , thing is i got a split set of roller rockers ill throw the 1.6's on the intake side


hate to admit it but i new the 224/224 would work great but picked the 268 cause of idle sound lol

new engine should be back together by wensday if it warms back up

work on the car has stalled otherwise , its been 0* here past few days , heater cant keep the shop warm enough to finish painting the car and i need that done before the motor goes back in

project89

iTrader: (1)

heres the middle 3 mains out of the old engine

project89

iTrader: (1)

ok cleaned up the deck, honed the cyls and cleaned up the pistons today , new rings and bearings will be here monday , so either monday or tuesday ill assemble the shortblock



gota finish polishing the piston tops , and then start polishing the chambers in the head

project89

iTrader: (1)

just ordered a new chrome 110amp 1 wire alt
summit 224/224 cam - returning the xe268
and a set of fabricated aluminum tall valve covers to clear the poly locks and stud girdles

if anyone is looking for a nice set of valve covers cheap this is the set i just ordered ( u will need to drill ur own pcv and breather holes though )
http://www.ebay.com/itm/SBC-Small-Block-Chevy-86-Tall-Fabricated-Aluminum-Valve-Covers-SB-V8-No-hole-/150808604355?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item231ce4aec3

Ron U.S.M.C.

For me, threads like this are indispensable. The amount of knowledge learned here is amazing. Question though ,they look great as far as the actual bead goes but are you going to file the beads on the covers down ? Seems they should blend in better or not be seen at all.

project89

iTrader: (1)

if i was building a shaved car and really clean engine bay i would.
but i actually prefer the look

when i built the sheetmetal intake for my v6 car i left all the welds alone as well , id rather look at a nice weld then a perfectly smooth intake or valve cover

could be cause by trade i am a welder/machinist

Ron U.S.M.C.

I did some research and find that most of the tall high end covers have the welds showing and do add that touch of professionalism. I’m no pro but when I was much younger I tried a few different types of welding and can agree that there is a certain amount of admiration when seeing a nice bead. Whether it’s done by hand or not.

project89

iTrader: (1)

gota love ordering from summit racing , ordered late last night , and parts will be here by noon tomorrow, not that it really matters i cant work on it till friday anyways

my last big decision is if im going to do a main and head stud kit , kinda worried about not being able to pull the heads off in the car if i do head studs on it
and i may also spring for a fixed idler style gear drive so i can play with advance/retard on the cam pretty easy , kinda torn on that as i had one of those pete jackson noisy gear drives on one of my old irocs , i loved it for about the first 2-3 days , then i couldnt stand it

project89

iTrader: (1)

didnt get any actual engine work done today but i did run over to napa to pick up some moly lube for the new cam along with plasti gauges i damn near fell over at the price just over 30 bucks for 5 reds and 8 greens
atleast the tube of moly lube for the cam and lifters was only 6 bucks

was supposed to assemble the shortblock this saturday but i got a call from the towns highschool today to hire me on for djing and doing a laser light show for there hs dance,i swear there has to be something in the water in this town everyone waits till the very last minute to get stuff taken care of

Drac0nic

I'd be tempted to do the head studs. ARPs should have an allen head in them so you can pull em out easy in car. If you don't find the limits of the main webbing on that 400 you'll quite plausibly find the limits of the deck.

I'd probably skip the main studs due to the potential for distortion of the bores and needing a line hone. I would find it amusing to see what the results were if you had a bore dial gauge and torqued em down and measured the distortion.

project89

iTrader: (1)

not building the 400 ive decided its to weak for the power im going to make


this is another 4 bolt main 350

project89

iTrader: (1)

now for the last few bits of parts im waiting on and im good to go

project89

iTrader: (1)

i swear my car is getting more xmas presents then i will this year lol




now i just need to drill one for a pcv valve on the other im going to weld in a screw on fill cap

project89

iTrader: (1)

well the valve springs off my old engine are no good and i need new valve springs , summit recomends this kit
http://www.summitracing.com/parts/sum-174000/overview/
125# on the seat , 304#'s open @ .496 lift provided the install height is correct at 1.750

springs are supposed to be good till .550 lift

but they dont give a coil bind number

would u use them or have a suggestion for a different spring?

junkcltr

iTrader: (1)

Looks like it comes with + .050" retainers (1.75-1.160-.050) = .540 max lift
Sounds reasonable for standard spring.
Would be nice to see the 125# seat pressure in writing.

I decided to go with RV-1943X on my vortec heads and using a 220/220 duration, .328" lift roller

project89

iTrader: (1)

if u click application on the summit site it says 125# on the seat

project89

iTrader: (1)

almost all my parts are here , new balancer , titanium retainers valve springs,locks, manley 1.94/1.5 stianless valves and new timing cover will be here thursday

other then that im waiting on poly locks , and stud girdles no eta on those though as i still dont have a tracking number

so far heres what i have
engine tech fireseal gasket set
engine tech .010 main and rod bearings ( federal m)
engine tech plasma moly rings ( perfect cirlce)

summit racing 222/224 @ .050 camshaft .496/.466 lift with split ratio rockers
summit racing hyd lifters

pmgr 110 amp polished 1 wire alt

adept performance split ratio stainless roller rockers
1 set tall fabricated aluminum valve covers



should be going together this weekend

Mrbanados

How much is all this going to cost?

Orr89RocZ

iTrader: (20)

Subbed

1991sleeper

iTrader: (-3)

Roller tip rockers ? Y not go ahead n get full rollers ?

junkcltr

iTrader: (1)

Titanium valve parts?

I thought you were going with the summit racing $70 valve spring and retainer kit. Why did you change your mind?

project89

iTrader: (1)

i got a deal on some used stuff

project89

iTrader: (1)

just in the engine i have about 1,300 with the new turbos
paint is about 300
id have to look at all my receipts for everything and add it up but truth be told id rather not know

ive had issues with full rollers in the past on street engines, thats why i went with roller tip only

project89

iTrader: (1)

well that stuff came in and of course the retianers are the wrong size , so i ordered up the summit kit and red labeled it the other day , should be here today

tommorow i start assembling the new engine, should of been today but as soon as ups gets here i gota go run to the shop and install a new muffler on my truck picked up a cheap jegs chambered muffler apears to be a flowmaster super 44 knockoff

project89

iTrader: (1)

started to assemble the new engine today didnt make it very far due to a piston ring issue

main clearance is as follows ( front to rear)

#1 .0025 -.003 ( hard to tell exactly with the plastigauge as it only went from .002 to .003
#2 .003
#3 .003
#4 .003
#5 .0025 - .003

over all im pleased with the clearances on this engine

the mains are tq'ed 80ftlbs inner bolts , and 70ftlbs outers

then it came time to fit the rings

im going with a .029 top gap and .023 second gap
anyways i went to put the first ring in the bore to measure it to see how much id have to file it and the gap came out at .081 , looks like they sent me a standard ring set instead of a .030 over set

so its on hold for now till i can get the ring set exchanged or another set on its way

project89

iTrader: (1)

got a new set of .030 over moly rings on the way second day air so they should be here right after xmas.

hoping i can get this thing together and back in the car next weekend barring any other issues

soon as this engine is done im going to send out my roller block for machining as a spare engine for this coming years drag season
.030 over dish pistons
vortec heads
vortec hsr
roller cam

was going to put it in my silverado but im going to do the build super chevy i think it was did with a vortec headed 406 and put that in my truck instead, then the thing might have some much needed towing power lol

project89

iTrader: (1)

rings wont be here till tuesday or thursday , tracking number says schedualled for jan 2nd but it says 2 busniess days left on the tracking so im hoping they will be here tuesday



the heads i pulledd off the original motor are junk , they have so much valve guide cleance i can move the valve around damn near an 1/8th inch ) its a shame cause they have a really nice port job and bronze guides installed

i refuse to spend the money for new guides so i broke down and bought a set of heads
200cc 64 cc chambers and the hsr , should be a nice gain over the tpi and iron heads

as of right now the only thing done on the engine is the crankshaft is installed
besdies that i picked up a good th350 core and th400 build cost thanks to my friend is minimal on the th350 so i may try that first but i have a feeling im going to end up with the th400 in the end

project89

iTrader: (1)

so somehow i goofed up when figuring out the cr with the new heads , and its going to be 10.2-1 with my current flat tops and a .041 gasket ( opps lol ). so now im ordering up a new set of pistons , im not even going to buy forged ones going to get a 90$ set of Speedpro H423ACP's , theese are dished 4vr pistons with a 10 cc dish

theese are .020 down in the hole though so a .021 or .015 shim type gasket will be mandatory , ut compression will be back down in the 8.9-1 to 9.1-1 range


i fought off the urge to buy a set of bushed rods so i could use floating pins , but the more i thought about it the more i relized it wasnt worth the extra cost as ive already spent to much money on this thing

Orr89RocZ

iTrader: (20)

Could experiment with higher quench height. Some say it doesnt matter as much with boost, some say over .100" it acts same as .040". Just something to consider

project89

iTrader: (1)

i dont want my cr lower then 8.9-1, with the cam im running , at 8.5-1 it prolly wouldnt be to nice to drive at low speeds

junkcltr

iTrader: (1)

And I thought it was just me where projects snowballed. I resisted this on my current low budget vortec build. Just needed a crank.....
The single plane EFI, roller cam, head parts, and crank quickly added up to almost a grand. Sad, I can search around and find LQ4 6.0 LSx every once in a while for that price.

project89

iTrader: (1)

im running it as is with the flat top pistons, if it pings ill pull the motor and swap the pistons out for the dished pistons

95% of this cars life is daily driver duty at 7-12 psi even with 10.2-1 comression it should be fine , methanol injection should be enough for higher boost when it sees track time

project89

iTrader: (1)

lol heres what caused the snowball , i should prolly just replace the guides as the heads already are ported and have bronze guides , but its my excuse to the wife to get a set of aftermarket heads

project89

iTrader: (1)

talk about snowballing i just bought a used nx nitrous direct port kit
thinking about dropping the turbos and just setting the motor up on nitrous alone

junkcltr

iTrader: (1)

Is that a 8 nozzle setup or 1 shark?
Why not setup up for boost and cool the high compression with N2O?