6g74? NA build?

 

not a 74 unless they someone reengineered pistons for it.remember the 74 pistons are dished and dont have the valve depressions in them.

hey pharm, who did the head job and what are the characteristics of the heads over stock? where they flowbenched? why didnt the ports (intake and exhaust) not get polished? how much did you spend? cams, heads, and long tubes with a tune is my next move since im having much to much fun being NA right now, so im trying to get an estimate on the heads. ive seen a place that says they can do a street/strip head job for $750 for both heads. good or bad?

 

That's a 6G72 project that started out at GCT.

 

Very nice machine work. :twothumb: Im sure it will perform very well.

 

Looks awesome!!

 

:wackit: Absolutely beautiful man.

 

That looks good. PharmEcis, we have to get up so you can teach me a few things heh. Im moving to MD next month.

 

ah ha got cha! how is your motor build going? are you going manual or what cuz that motor would beg for a five speed. oh and please put the sig up that you have on tgc up over here. that car is so damn beautiful!

pharm, now im just trying to decide on whether i should go with the stage one cams so i dont have to buy the valvetrain just yet or what. man decisions decisions

 

very nice

 

Holy Craftsman Tools PharmEcis!!

 

:wackit:

That shit is pure sex. I've been waiting so long for this and now I can taste it...

I swear it's going to be like Christmas morning when this project is complete.

 

Yes it does look nice. Awesome work! :twothumb:

 

Ironically this is another 03 gts spyder . BTW what happened to the stock motor and how long did it last?

 

Nothing really happened to the stock motor, it's just not set up to handle what I wanted to put to it. So it was removed and for the most part is still intact (except for the pieces I left behind at GCT and they failed to send Greg after repeated attempts). I'm sure it would be up for sale if anyone wants it, still very low mileage (~35K).

 

I know I'm taking a chance posting here but I really wanted to ask a question.

How did the valve train work out? Specifically the lifter pre-load? Also, did they machine the spring locators to fit around the exhaust valve guide retaining clips or did they just leave the clips out?

That was a prototype setup that I had built and I've never tried anything like it. It took like 4 months for them to get that set up to me and I told them I'd give them some feedback on how it worked out.

 

too bad all that work was wasted on a 6g72 and not put to good use on a 4g64 to make some real power.

 

wasted?:nono: no real work during an engine build is wasted on any of the 6g series motors. it would have really been something to see this done to a 74 before i finish mine. anyway, pharm good luck on making this motor perform as good as it looks because it will be one nasty MF :bigthumb:

 

The valve train was assembled pretty smoothly. The locators were machined and is part of what added to the machine shop's cost. The lifter preload seems to be ok too. I bled down the lifters before install and after bolting everything down you can see that the lifters have compressed slightly but not completely. I've spun the cam gear multiple rotations and did not notice any operation that seemed out of the norm in the valve train. I guess we'll really find out after key start how it does.

Don't worry, the next motor I have to go up on an engine stand is my personal 6G74 w/ forged pistons. Unfortunately I spend all my time working on client's cars instead of my own so it kind of sits on the backburner.

 

Don't worry, the next motor I have to go up on an engine stand is my personal 6G74 w/ forged pistons. Unfortunately I spend all my time working on client's cars instead of my own so it kind of sits on the backburner.

I know the feeling :sad:

 

keep us posted bro

 

Nice looking work. Which cam gears are those, Fidanza?

 

Awesome work Greg. You just might build my motor one day.

 

:hspin: :hspin: :hspin: :hspin:

:hspin: :hspin: :hspin: :hspin: :hspin: :hspin: :hspin:

LOL LOL LOL LOL LOL LOL LOL LOL LOL LOL LOL LOL LOL LOL LOL

 

:scratch:

 

Randy is trying to say Lunar is broke.

 

Guess i have to work on my smiley lingo.... ::ghey3:

 

The shortblock looks good. I took a peak at it when it was setting in the back of my shop.

 

:scratch:

And when was it in the back of your shop?

 

Thats the motor that got switched with my transmission right.

 

Hmm.. I don't know. Was your car ever in FL?

 

Tim is confused. The motor he saw was a race short block that was shipped to another customer at the same time as his 5 spd swap. Fedex fucked up and sent the short block to Tim and his 5 speed swap ended up some how in SC. $5k in shipments fucked by Fedex... Needless to say I wasn't happy. Then UPS loses the majority of a turbo kit! ARGH! $10k in shipments got fubar'd in less than a week!

This motor is a fully fully built motor and is now hopefully going to be driven by an AEM EMS.

 

:wiggle:

 

Yeah, that was fun, and delayed my build by about a week, now I cant get a clutch and flywheel immediatly so thats another week. At this rate, if all goes well it will be running by the end of summer. Oh yeah, Fed-Ex just torched my moms new computer. Two of their trailers went up, I'm having so much luck with shipping things.