TPITuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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can anyone recommend some part #'s to check out for trick flow heads?
i want to keep all my emissions and my centerbolt setup.
just want a set of heads that are fully assembled and ready to install except for maybe some 1.6 rr's.
i have a zz4 cam and bolt-ons already.
i found TFS-30400005 & TFS-30400006 at summit.
are those my best bet for $ and compatibility?
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Last edited by TPInside; 10-23-2005 at 02:56 PM.
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If you are going to do future mods I would go with the 304-00007 heads with the dual springs and the safety factor of two springs. Stay away from the 304-00005 heads as they are only good to .525" lift. You will max them out with your ZZ4 and 1.6 roller rockers.
__________________ Best et of 12.12 and best mph of 111.27 mph. Motor specs as follows: 355ci, Dart Pro One 200cc heads, 10.72:1 compression, 8.5:1 dynamic compression ratio, TPI with highly modified 1st style SLP runners, moded GM plenum and First Injection TPI intake manifold, Mike Jones 228/228 cam, Yank SS3600 converter, Dyno Don 1 3/4" shorty headers with excellent Dyno Don custom exhaust, custom cold air intake, AS&M monoblade throttle body. Race weight 3760 with driver. Meziere electric water pump. Mufflex 3.5" exhaust catback. Magnaflow 3.5" muffler#12909. Kevin91Z Tune. 4L60E installed.
Standard correction/unlocked 380RWHP, 371 RWTQ. SAE numbers are 370RWHP, 361RWTQ. Switched to MAP. At the motor that is 462HP SAE.
A 370 cubic inch motor based on the Dart SHP block is under construction. Using AFR 195cc Comp Heads.
yeah i saw those too.
didn't know if i needed that much.
how did you calculate the lift?
sorry i'm new to this head stuff.
by max out you mean they will only flow so much and not use all air i'm pushing through?
i might look into a turbo or super in the future too so if that's the case, i'll save up a couple hundred more bucks.
By maxing out you will bind the springs and have a failure. I believe the exhaust lift with 1.5 rockers on a ZZ4 cam is .495 inches. With 1.6 rockers it becomes .528 inches and that is more than the 00005 heads can take without mechanically binding.
If you are going for more power down the road I would go for the 0007 heads. They will handle about any cam you want to put in your motor.
__________________ Best et of 12.12 and best mph of 111.27 mph. Motor specs as follows: 355ci, Dart Pro One 200cc heads, 10.72:1 compression, 8.5:1 dynamic compression ratio, TPI with highly modified 1st style SLP runners, moded GM plenum and First Injection TPI intake manifold, Mike Jones 228/228 cam, Yank SS3600 converter, Dyno Don 1 3/4" shorty headers with excellent Dyno Don custom exhaust, custom cold air intake, AS&M monoblade throttle body. Race weight 3760 with driver. Meziere electric water pump. Mufflex 3.5" exhaust catback. Magnaflow 3.5" muffler#12909. Kevin91Z Tune. 4L60E installed.
Standard correction/unlocked 380RWHP, 371 RWTQ. SAE numbers are 370RWHP, 361RWTQ. Switched to MAP. At the motor that is 462HP SAE.
A 370 cubic inch motor based on the Dart SHP block is under construction. Using AFR 195cc Comp Heads.
well i don't plan on upgrading to a bigger cam than the zz4.
which tf's are you running on your gta?
can you keep the stock valve covers?
i want to use 1.6 rr's too and want to make sure they fit, can i use self aligning with these heads
thanks for the help.
I'm running the 00007 with 1.6 rollers and stock valve covers with a ZZ9 cam. Going to the Comp Cams XFI268HR-13.
__________________ Best et of 12.12 and best mph of 111.27 mph. Motor specs as follows: 355ci, Dart Pro One 200cc heads, 10.72:1 compression, 8.5:1 dynamic compression ratio, TPI with highly modified 1st style SLP runners, moded GM plenum and First Injection TPI intake manifold, Mike Jones 228/228 cam, Yank SS3600 converter, Dyno Don 1 3/4" shorty headers with excellent Dyno Don custom exhaust, custom cold air intake, AS&M monoblade throttle body. Race weight 3760 with driver. Meziere electric water pump. Mufflex 3.5" exhaust catback. Magnaflow 3.5" muffler#12909. Kevin91Z Tune. 4L60E installed.
Standard correction/unlocked 380RWHP, 371 RWTQ. SAE numbers are 370RWHP, 361RWTQ. Switched to MAP. At the motor that is 462HP SAE.
A 370 cubic inch motor based on the Dart SHP block is under construction. Using AFR 195cc Comp Heads.
very cool.
which rollers (brand/self aligning) and pushrods (brand/size) are you using and did you have to buy or recommend anything else when doing all this at once?
__________________ Best et of 12.12 and best mph of 111.27 mph. Motor specs as follows: 355ci, Dart Pro One 200cc heads, 10.72:1 compression, 8.5:1 dynamic compression ratio, TPI with highly modified 1st style SLP runners, moded GM plenum and First Injection TPI intake manifold, Mike Jones 228/228 cam, Yank SS3600 converter, Dyno Don 1 3/4" shorty headers with excellent Dyno Don custom exhaust, custom cold air intake, AS&M monoblade throttle body. Race weight 3760 with driver. Meziere electric water pump. Mufflex 3.5" exhaust catback. Magnaflow 3.5" muffler#12909. Kevin91Z Tune. 4L60E installed.
Standard correction/unlocked 380RWHP, 371 RWTQ. SAE numbers are 370RWHP, 361RWTQ. Switched to MAP. At the motor that is 462HP SAE.
A 370 cubic inch motor based on the Dart SHP block is under construction. Using AFR 195cc Comp Heads.
really? the summit catalog said special length pushrods required.
what about those rollers, what are you using, steel, alum, self aligning?
sorry about all the questions but you have a similar setup to what i have and i'm looking for.
do you knoe wat my 89 gta would put out for rwhp its basically an all stock 5.7 L98 jus wit a magna flow stainless steel catback an a y pipe????????????
