help me decide *heads and cam* inside, ASAP

[Mike]

this is a copy of a sale thread on ls1tech, i have dibs if i want the parts, alla i would need is stock length pushrods and rocker arms he will do 1600 shipped on the combo....let me know what ya think



MTI Stage 2E Heads- Heads feature 2.02"in. valve and 1.57"ex. valve. Heads have been upgraded to a Comp Cams 978 dual valve springs. These are "241" castings. These heads have not been milled to increase compression and retain the factory 67cc combustion chambers. These heads will support a LARGE cam.

These heads have been assembled with new guides and seals. They have been checked and cleaned by "AES" Automotive Engine Specialists in Elk Grove, IL. I have receipts for the work. Ready to be bolted on and GUARENTEED no problems. $1500

Here is a link to MTI for more info on the heads:
http://www.motorsporttech.com/fbody_engine01.asp

MTI C1 Hammer Cam- 222/222 .566/.566 112 lsa 1k miles on this cam. $200

With these heads and cam have put an all motor full weight stock shortblock 6-Speed LS1 F-Body to a best of 11.02@122 w/1.50 60ft.
Car made 433RWHP and 411RWTQ, peak HP was @ 6400RPM

[foff667]

id say try those new prc dart heads & a high 220's duration cam on a 112 or 114 and be in the 450 rwhp range & be done with it for basically the same price.

[Tru2Chevy]

Yea, I dunno much about LS1 heads, but that seems like a pretty small cam to me...

- Justin

[NJSPEEDER]

TTP 4R package.
dyno'ed on a stock bottom end motor at 505hp and 436 ft/lbs

[Rich189]

seems like a small cam... heads seem pretty nice though but from what i've heard the new darts are the way to go

[jims69camaro]

Originally Posted by Tru2Chevy

Yea, I dunno much about LS1 heads, but that seems like a pretty small cam to me...

- Justin

right? he says it can take a BIG cam, but he includes a relatively small cam with the sale.

[foff667]

Dart ls1 heads are like $850 and flow as well or better then any ported stock ls1 head but have generally a 5-10% smaller intake port which will keep velocity up=more tq for the same cfm flowed. They come with single springs but duals can be had for $200-250 if you want the added protection...go with a cam in the high 220's duration and 600ish lift on a 112-113lsa and you'll make more power, have a better tq curve & be just as driveable or better then that setup.

[qwikz28]

you ever look at that mamo combo by tony mamo over at AFR? they are making 470-480 rwhp on a relaively mediumly aggressive cam.

[35thls1ss19]

go with the prc darts... i did i will let u know how they work in about a week

[NLinnear]

We plan on having a car ready with PRC Dart heads and our V.2 cam next week.

[foff667]

Originally Posted by NLinnear

We plan on having a car ready with PRC Dart heads and our V.2 cam next week.

I've gotten conflicting info on how much stock darts cost...i read somewhere they were $850 for both and somewhere they are $850 each...can you confirm which is right? I think the prc's are like $1500 total but they are darts that prc ported so I wasnt sure whats what.

[35thls1ss19]

Originally Posted by foff667

I've gotten conflicting info on how much stock darts cost...i read somewhere they were $850 for both and somewhere they are $850 each...can you confirm which is right? I think the prc's are like $1500 total but they are darts that prc ported so I wasnt sure whats what.

def. $850 for both

[V]

Summit sells the bare Dart heads for $951.90 a pair and $1619.90 assembled.

[NLinnear]

Fully assembled CNCed PRC Dart go for $900 a pair. Add in $250 for the PRC dual spring kit and up to $400 for new valves (2.04/1.575). Now you are at $1550.