To keep or not to keep?

[95WhiteVenom]

Well guys heres my delima. Talked to john at Delk a lil while back and now i'm at the deciding point. Keep the stock GT-40's (put in new valvesprings, retainers, and lifters) or wait a couple of more weeks and order TF twisted wedge heads. No matter what my TFS stage 1 cam will go in the same time.

So here is my questions how much more power are we really talking about with the trickflow over the gt-40's and if so what about afr's not sure if it would match up with my cam, but trickflows seem to be just as good to me.

Also what else would i have to buy
rockers? (or can i keep mine)
lifters? (I'm sure its a must cause of the new cam and old lifters will have wear patter of my stock cam and not the new one)
pushrods? (or can i use my stock ones?)
anything else beside gaskets that ill need for the install and also what gaskets will i need?
Sorry for the thread being so long.

 

[Grn92LX]

If moneys not an objets get the trickflow heads. They make way more power than GT40 heads. You'll need new pushrods and rockers (1.6 stud mount) You need 3/8" for regular TW heads and 7/16" for track heat TW heads. 6.7" or 6.75" pushrods should work but measuring never hurts considering the tool is $13.

 

[KingDiamond]

I think my friend gained about 30 to 40 hp with the trickflow heads on his cobra with minor bolt-ons and the stock cobra intake.

 

[final5-0]

Chris

I gotta throw in with Mike and the better heads. I know it will cost you more but I also think you should go for stud rockers.
They are stronger and less of a hassle to adjust as well as offer a range of adjustment with ease.

I won't get into the TFS vs AFR thing as good power can be made with both of em.

Sell the iron heads to offset the cost of the Aluminum heads.

Later
Grady

 

[95WhiteVenom]

humm sell the irons that is a good idea. I'll sell them after i get the trickflows. Well i would have got the heads next week but my crazy self couldnt stop from ordering a pro-m. So it looks like
1000 for heads
what type of rockers yall suggest (brand and size)
guess lifters ill get the FRPP ones
and doesnt TF make pushrods for those heads?
So what would all this stuff run me other than the heads as far as price?

 

[mootang]

deffinatly get the tf or AFR heads and get some good stud mount rockers. as well as the trick flow hardened pushrods.

i believe my tf pushrods were about 100 bucks

and my rocker arms were 260 bucks for the pro magnum rr's.

 

[JJ95GTID]

Summit sells the TF Twisted Wedge heads as well as the roller rockers and pushrods to go with them.

 

[95WhiteVenom]

humm all this for just 40hp max?

 

[mootang]

HP COST $$$!!!

260hp vs. 300hp is a big difference!!

 

[mootang]

also anything you do later on will make better gains when combined with the better flowing heads.

 

[95WhiteVenom]

true and with the LT's and dr. gas X going on before hand it will make a bigger difference. I'm trying to finish getting all the bolt-ons first. Anyone suggest a bigger TB?

 

[mootang]

you can always get the tb at a later time but if you have the money you might as well get a 70mm or 75mm for the swap.

also you'll probably want to get a bigger fuel pump at the same time you do the head and cam swap. Possibly some 24# injectors too.

 

[95WhiteVenom]

its a cobra its already has 24's yea the walbro 255 is on the list as well and also a kirban fpr.

 

[mootang]

sorry i missed that.

 

[95CobraMike]

tw or AFR....especially if you plan on getting blown later....40 NA hp turns in to lots more when you're blown...maybe not, but it sounds cool....

 

[95WhiteVenom]

sorry no blower here its gonna be N2O for a lil while.

 

[95CobraMike]

well if you sell your gt-40's and buy some diffrent ones, the cost wont be all that bad...
you will need want to upgrade your valve springs when you are in there(for the cam)....lifters and pushrods should be ok...unless your cam is alot diffrent and they arent long enough or too long....
so tw or afr heads.....1000ish
sell your gt-40's 400-500??? (not sure)
new springs 120ish

so you are talking $650-750 or so for 40ish HP

 

[ProKiller]

so you are talking $650-750 or so for 40ish HP

thats just an estimate from one guy. better flowing heads are more horsepower. and the aluminum will be alot better than iron heads, both heat and weight wise. its not all about hp all the time.

 

[CARJACKED]

You will gain HP and drop alot of weight off of the nose of the car...Those heads are well worth a grand!

 

[95WhiteVenom]

Thanks guys for all the info. its definately gonna be Trickflow twisted wedge heads now. I'll prolly start ordering my supposting parts the rest of this week and maybe next week I can see about getting the heads. I'll keep yall updated as in this car is just now really getting started. Humm,...I have been a member since october of 2002 and I have never posted a pic of the car.