new no-name aluminum heads : what do you guys think?

[JJ95GTID]

GT40 Y303 take off heads. Never fired up.

 

[fiveoho]

GT40 Y303 take off heads. Never fired up.

 

[fiveoho]

Those are a nice set of heads. Thumper heads are legendary around these forums. 1.94" valves are fine.

BTW nobody is selling GT40 Y303s that cheap anymore. I got them in July '04 when FRPP was removing the heads from crate engines so they could make long blocks with the new 'Z' heads. They sold them as 'take off' heads. At the time I was looking to get a set of Thumpers or Powerheads but these Y303s showed up for just a few $$$ more. Couldn't pass it up. No regrets here.

As a matter of fact the '07 FRPP catalog doesn't have the GT40 Y303s listed anymore.

Ford Explorer intake, FMS Y303 heads, BBK E/L headers, Pypes catted X-pipe, MAC U/D pulleys, Ebay CAI, PP SFI dampner, FMS wires........

is that your up-to-date mod list? any dyno numbers or track times?


about the thumpers: so i take it you like them? do you think they would work well with the following combo ( different cam...that stage 2 prob wont work? ):

here is what i have :

TFS street heat upper and lower
TFS 2001 cam
FMS lifters ( used very low miles )
SVO elbow
BBK 70mm throttle body
PRO-M 75mm mass air ( calibrated for 24's )
FMS 24# injectors
Aeromotive afpr
Walbro 190 pump
FMS balancer ( non sfi )
FMS lifter spider
FMS 5 quart pan/pickup
FMS timing set

 

[JJ95GTID]

Ford Explorer intake, FMS Y303 heads, BBK E/L headers, Pypes catted X-pipe, MAC U/D pulleys, Ebay CAI, PP SFI dampner, FMS wires........

is that your up-to-date mod list? any dyno numbers or track times?


about the thumpers: so i take it you like them? do you think they would work well with the following combo ( different cam...that stage 2 prob wont work? ):

here is what i have :

TFS street heat upper and lower
TFS 2001 cam
FMS lifters ( used very low miles )
SVO elbow
BBK 70mm throttle body
PRO-M 75mm mass air ( calibrated for 24's )
FMS 24# injectors
Aeromotive afpr
Walbro 190 pump
FMS balancer ( non sfi )
FMS lifter spider
FMS 5 quart pan/pickup
FMS timing set

A stage two cam will work but unless you plan to tune with a chip or tuning device I would pick a cam more suited to the 94-95 EEC. See the sticky for examples. Or, you could go custom cam but that cost $$$.
If your current lifters aren't in bad shape no need to spend money on another set.
The stock spider will work fine. It just keeps the lifters from turning in place.
The SVO elbow is overpriced new. You can get a Professional Products for less money. Also, I believe the SVO version is only 65mm. You'd have to enlarge the opening for a 70mm TB.
The larger oil pan is definately something I would do if the motor is out of the car. Until then it could wait.
The balancer is a good idea. The stock unit is not good at all.
The TB, injectors and MAF are debatable at this point. I say bolt on the H/C/I and then see if you need the rest.

Yes, my mod list is correct. Stock catback and rocker arms are getting replaced soon with a Pypes catback and Crane (Cobra) 1.7:1 roller rockers. Still running the stock cam, TB, MAF, fuel pump and injectors. No signs of a lean condition. And, so far, no need for a chip or tuning device.

The track is my dyno and the numbers are at the bottom of my sig.

Using online calculators and assuming a weight of 3500lbs with me in the car I should be around 250rwhp at current elevation. Approximately 270rwhp at sea level.

 

[JJ95GTID]

Didn't answer your question, sorry.

Yes, I like Thumper heads and would've gotten a set had not the deal with the Y303s come along.
Yes, they will work good with your parts list.

 

[fiveoho]

A stage two cam will work but unless you plan to tune with a chip or tuning device I would pick a cam more suited to the 94-95 EEC. See the sticky for examples. Or, you could go custom cam but that cost $$$.
If your current lifters aren't in bad shape no need to spend money on another set.
The stock spider will work fine. It just keeps the lifters from turning in place.
The SVO elbow is overpriced new. You can get a Professional Products for less money. Also, I believe the SVO version is only 65mm. You'd have to enlarge the opening for a 70mm TB.
The larger oil pan is definately something I would do if the motor is out of the car. Until then it could wait.
The balancer is a good idea. The stock unit is not good at all.
The TB, injectors and MAF are debatable at this point. I say bolt on the H/C/I and then see if you need the rest.

Yes, my mod list is correct. Stock catback and rocker arms are getting replaced soon with a Pypes catback and Crane (Cobra) 1.7:1 roller rockers. Still running the stock cam, TB, MAF, fuel pump and injectors. No signs of a lean condition. And, so far, no need for a chip or tuning device.

The track is my dyno and the numbers are at the bottom of my sig.

Using online calculators and assuming a weight of 3500lbs with me in the car I should be around 250rwhp at current elevation. Approximately 270rwhp at sea level.

i really appreciate you taking the time to help.

i know alot of things in that list doesnt make sense to have if i am going to do a bolt on HCI. but the original plan was to order a new shortblock from CHP and start from scratch and sell my factory motor ( ie spider, oil pan, etc ).

i did not know that about my SVO elbow. so if it is 65mm and my TB is 70...im bottlenecking. thank u for that info

you are probably right about picking a different cam. i want something with enough duration to make plenty of noise but still have some bottom end ( if thats possible )

heads: so the thumper e7s are not a bad selection?


*sry about asking track times, i wasnt paying enough attention to your sig. very respectable times tho

thanku again

 

[JJ95GTID]

No problem at all. Here's something that you might not have thought about

If you are getting a short block then heads with 2.02 valves are no longer a worry
You aren't going to get a set of stock pistons with an overbored block. Check with the builder but chances are the pistons will have valve reliefs cut into them for larger valves.

 

[JJ95GTID]

I see from your other threads that you are staying with the stock short block and the list of parts is what you have already.

Go with the thumpers if you can't wait to save up for aluminum heads.
Don't worry about the elbow. You can make it work with a metal file.

 

[fiveoho]

I see from your other threads that you are staying with the stock short block and the list of parts is what you have already.

Go with the thumpers if you can't wait to save up for aluminum heads.
Don't worry about the elbow. You can make it work with a metal file.

thanks man

would love to do fresh shortblock but i dont i will be able to.

thanks again for all the tips/advice

 

[fiveoho]

1.94" Intake Valves and 1.54" Exhaust Valves with the TFS 1 cam and stock pistons will work?

any bigger cam might run into clearance issues?