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07-05-2017, 01:20 PM
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#701
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Join Date: Nov 2007
Location: Jackson, NJ
Posts: 1,723
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Quote:
Originally Posted by Jersey Mike
When is this happening?
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I have the block back from the machine shop. I have everything I need for the bottom end. Just need to set aside the time to assemble.
I'll make a thread once I actually have everything and put it together.
__________________
1983 camaro- Scrap
1988 camaro- Also scrap
'05 Silverado- You guessed it, scrap
1988 TRX 250R- Ported w/ high compression on 110 octane- Out 60' your LT1
Jersey Shore Street Car Takeover (JSSCT) Founder
Quote:
Originally Posted by LS1ow
and once i get PHB, what do i ajust it too?
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Quote:
Originally Posted by Jersey Mike
Seven.
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07-05-2017, 01:29 PM
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#702
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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Quote:
Originally Posted by wretched73
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Correct me if im wrong, but those heads are just GM castings they CNC. If you supply your own casting to PRC you would save yourself about $400. I think TEA uses a hair larger valves, which is prob the reasoning for the hair better numbers.
https://www.texas-speed.com/p-1172-p...-castings.aspx
TEA: $1,1000
Lift Intake Exhaust
0.100 67 54
0.200 139 120
0.300 219 179
0.400 271 224
0.500 308 248
0.550 315 255
0.600 320 260
PRC: $950
Lift Intake Flow Exhaust Flow
.200" 147 cfm 114 cfm
.300" 209 cfm 152 cfm
.400" 258 cfm 191 cfm
.500" 294 cfm 207 cfm
.600" 316 cfm 226 cfm
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
Last edited by LS1ow; 07-05-2017 at 01:36 PM.
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07-05-2017, 01:40 PM
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#703
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Join Date: Nov 2007
Location: Jackson, NJ
Posts: 1,723
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Quote:
Originally Posted by LS1ow
Correct me if im wrong, but those heads are just GM castings they CNC. If you supply your own casting to PRC you would save yourself about $400. I think TEA uses a hair larger valves, which is prob the reasoning for the hair better numbers.
https://www.texas-speed.com/p-1172-p...-castings.aspx
TEA: $1,1000
Lift Intake Exhaust
0.100 67 54
0.200 139 120
0.300 219 179
0.400 271 224
0.500 308 248
0.550 315 255
0.600 320 260
PRC: $950
Lift Intake Flow Exhaust Flow
.200" 147 cfm 114 cfm
.300" 209 cfm 152 cfm
.400" 258 cfm 191 cfm
.500" 294 cfm 207 cfm
.600" 316 cfm 226 cfm
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Yes I believe you are correct. I have a set of 317's but I'm going to opt for the brand new GM castings that PRC uses. In my case, I know the original motor was overheated- so after spending ~$3k in a rotating assembly and ~$1k in machine work, I'd rather have the peace of mind of brand new GM castings
__________________
1983 camaro- Scrap
1988 camaro- Also scrap
'05 Silverado- You guessed it, scrap
1988 TRX 250R- Ported w/ high compression on 110 octane- Out 60' your LT1
Jersey Shore Street Car Takeover (JSSCT) Founder
Quote:
Originally Posted by LS1ow
and once i get PHB, what do i ajust it too?
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Quote:
Originally Posted by Jersey Mike
Seven.
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07-05-2017, 01:56 PM
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#704
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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Quote:
Originally Posted by wretched73
Yes I believe you are correct. I have a set of 317's but I'm going to opt for the brand new GM castings that PRC uses. In my case, I know the original motor was overheated- so after spending ~$3k in a rotating assembly and ~$1k in machine work, I'd rather have the peace of mind of brand new GM castings
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In a situation like that then yeah if definitely makes sense to go with new then lol
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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07-05-2017, 02:35 PM
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#705
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Join Date: Nov 2007
Location: Jackson, NJ
Posts: 1,723
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Quote:
Originally Posted by LS1ow
In a situation like that then yeah if definitely makes sense to go with new then lol
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IDK how much you have in those heads already, Just didn't want to see you spend $1,100+, when you might be able to get a better deal buying something new.
__________________
1983 camaro- Scrap
1988 camaro- Also scrap
'05 Silverado- You guessed it, scrap
1988 TRX 250R- Ported w/ high compression on 110 octane- Out 60' your LT1
Jersey Shore Street Car Takeover (JSSCT) Founder
Quote:
Originally Posted by LS1ow
and once i get PHB, what do i ajust it too?
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Quote:
Originally Posted by Jersey Mike
Seven.
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07-05-2017, 02:54 PM
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#706
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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Quote:
Originally Posted by wretched73
IDK how much you have in those heads already, Just didn't want to see you spend $1,100+, when you might be able to get a better deal buying something new.
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I forget how much i paid for them but cheaper than the normal going rate for 243, i think i got em for $250. I see them go for mostly $350-$400.
so $250 for the heads and another $250 for a BTR spring kit with Ti retainers
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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07-06-2017, 10:09 AM
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#707
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10 Second Club
Join Date: Feb 2008
Location: Eatontown
Posts: 1,647
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Quote:
Originally Posted by wretched73
IDK how much you have in those heads already, Just didn't want to see you spend $1,100+, when you might be able to get a better deal buying something new.
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Tea replaces the valves, guides, full Valvetrain, and Cnc inside and out on heads so given all the threads are intact it makes more sense to send them cheaper used cores than to buy new.
243>317 heads for N/A ls1/2 considering the milling potential to optimize compression
__________________
1999 C5 FRC: 12.7@114
2008 TBSS: 12.48@108
2017 Silverado 2500 do you even lift breh?
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07-06-2017, 10:44 AM
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#708
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Join Date: Nov 2007
Location: Jackson, NJ
Posts: 1,723
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Quote:
Originally Posted by KirkEvil
Tea replaces the valves, guides, full Valvetrain, and Cnc inside and out on heads so given all the threads are intact it makes more sense to send them cheaper used cores than to buy new.
243>317 heads for N/A ls1/2 considering the milling potential to optimize compression
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Stock LS1 has 10.1 compression ratio with 68 cc chamber IIRC?
The 317's can be milled down to 65 cc chamber.
Then he'd need a cathedral port intake manifold.
Not saying the 317s would be a better choice. I was just trying to point out that he might be able to find new cast heads for a good deal. Again, not necessarily cheaper than the route he is planning on, but IMO it gives more piece of mind.
Either way, get that motor in the car. Duke island is right around the corner
__________________
1983 camaro- Scrap
1988 camaro- Also scrap
'05 Silverado- You guessed it, scrap
1988 TRX 250R- Ported w/ high compression on 110 octane- Out 60' your LT1
Jersey Shore Street Car Takeover (JSSCT) Founder
Quote:
Originally Posted by LS1ow
and once i get PHB, what do i ajust it too?
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Quote:
Originally Posted by Jersey Mike
Seven.
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07-06-2017, 11:27 AM
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#709
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10 Second Club
Join Date: Feb 2008
Location: Eatontown
Posts: 1,647
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LS1, stock 241 head ~67cc, stock .051" HG = 10.35:1scr
LS1, stock 243 head ~64cc, stock .051" HG = 10.73:1scr
Stock head gaskets are .051" to help with emissions to get a more complete burn of the charge. Going to .040" gaskets is best for a stock motor IMO to balance quench and clearance of pistons OOTH, then work out the chamber size to best fit DCR for your desired cam timing and fuel.
LS1, 72cc 317 head MAX milled to 65cc, .040" HG = 10.60:1 scr
LS1, 64cc 243 head milled to 62cc, .040" HG = 11.32:1 scr/ 8.77:1dcr (for Sir Beggs cam choice and 93 pump)
So with the 317 heads you would be leaving ~0.7:1 compression on the table. The rule of thumb for compression is ~5% per full point of compression, so 0.7:1 = 3.5%, and assuming ~450hp crank thats about 16hp. Plus the peace of mind that your heads are not milled thin and ready to give you a piece of their mind. Given you could still do some tricks with installed ICL or adding timing to make up some of the compression difference, but y?
__________________
1999 C5 FRC: 12.7@114
2008 TBSS: 12.48@108
2017 Silverado 2500 do you even lift breh?
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07-06-2017, 11:37 AM
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#710
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
Last edited by LS1ow; 07-06-2017 at 11:39 AM.
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07-06-2017, 11:42 AM
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#711
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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Quote:
Originally Posted by wretched73
Then he'd need a cathedral port intake manifold.
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I has. My Fast setup is a cathedral port. I wish it was LS3 top end.
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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07-06-2017, 11:54 AM
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#712
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Join Date: Nov 2007
Location: Jackson, NJ
Posts: 1,723
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Quote:
Originally Posted by wretched73
Not saying the 317s would be a better choice. I was just trying to point out that he might be able to find new cast heads for a good deal. Again, not necessarily cheaper than the route he is planning on, but IMO it gives more piece of mind.
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__________________
1983 camaro- Scrap
1988 camaro- Also scrap
'05 Silverado- You guessed it, scrap
1988 TRX 250R- Ported w/ high compression on 110 octane- Out 60' your LT1
Jersey Shore Street Car Takeover (JSSCT) Founder
Quote:
Originally Posted by LS1ow
and once i get PHB, what do i ajust it too?
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Quote:
Originally Posted by Jersey Mike
Seven.
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07-06-2017, 12:02 PM
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#713
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10 Second Club
Join Date: Feb 2008
Location: Eatontown
Posts: 1,647
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Even that horse would choose 243s
__________________
1999 C5 FRC: 12.7@114
2008 TBSS: 12.48@108
2017 Silverado 2500 do you even lift breh?
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07-06-2017, 12:41 PM
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#714
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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07-06-2017, 01:01 PM
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#715
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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Timing cover, Oil pump, Cam retainer plate bolts all reusable or they torque to trash
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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07-06-2017, 01:13 PM
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#716
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Ebearnezer Scrooge/Power Member/Lips
Join Date: May 2006
Location: Hamilton, Mercer county
Posts: 4,141
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Timing cover is definitely reusable, I would think the oil pump is too since the torque spec is pretty low. Not positive about the cam plate, but I would think that one would also
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07-07-2017, 07:41 AM
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#717
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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if you torque them higher than what they had before, they are brand new tty bolts.
#logical
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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07-07-2017, 10:57 AM
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#718
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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Tracking number for boomstick hasnt changed at all since yesterday, so it looks like i wont be getting it for the weekend.
on a side note, when replacing new front seal, any special tools needed to seat the seal?
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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07-10-2017, 11:26 AM
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#719
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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Does it make sense to throw the cam in prior to having to spin the motor upside down to do the rod bolts? Or should i just wait it out and do the cam after the rod bolts.
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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07-10-2017, 04:14 PM
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#720
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Stalker
Join Date: Aug 2004
Posts: 12,077
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If heads are on, do the cam with the motor flipped upside down. That way the liters have no chance of dropping down. I did it all that way and then did my rod bolts on my crate ls6.
Last edited by V; 07-11-2017 at 08:55 PM.
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07-11-2017, 11:19 AM
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#721
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Join Date: Sep 2008
Location: Hackettstown, NJ
Posts: 1,638
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Quote:
Originally Posted by LTb1ow
if you torque them higher than what they had before, they are brand new tty bolts.
#logical
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This legit made me spit my lunch all over my keyboard.
__________________
1998 Z-28 - SLP lid - Ported TB - LS6 Intake - Dynatech SS headers/Catted Y - Magnaflow Exh - 3.42 - Yank SS3600 - UMI weld-in subframe connectors, Adj LCA, Adj PHB, Q1A TA - Bolt-in Relocation Brackets - Strano springs - Koni shocks - 17" C6Z06 wheels - 326HP/335ft-lbs - 12.35 @ 110.41
Quote:
Originally Posted by Blackbirdws6
I can appreciate a dream but this person needed some real friends.
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07-11-2017, 07:14 PM
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#722
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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Question:
Safe to clean oil pan and pan bolts on standard parts washer?
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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07-11-2017, 07:21 PM
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#723
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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Why not?
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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07-11-2017, 07:57 PM
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#724
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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Quote:
Originally Posted by LTb1ow
Why not?
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Wasn't sure if maybe to harsh of a chemical for the soft metal
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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07-12-2017, 07:10 AM
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#725
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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Inevitable Failure.
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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