Ordered 402 Block and going with 5.3 heads
Thread Starter
11 Second Club
iTrader: (8)
Joined: Aug 2005
Posts: 2,451
Likes: 0
From: Pasadena, CA
Ordered 402 Block and going with 5.3 heads From Texas speed
I have decided my combo for now...
I ordered my 402 with -10cc pistons and a .045" gasket for a compression ratio of 11.1 :1 , I could have gone with the .040" gasket but I didnt...since I dont want too much compression with the Torquer 3 cam and my 5.3 heads that Im reusing...
FAST 36# injectors
85mm maf SLP, since my old stocker delphi wasnt working
oil pan gasket for when I make a swap
New headbolts
Ill be getting anew crank bolt from my local auto shop, since I forgot to order it...
should this be all I need for a swap?
My goal is to achieve a driveable street car that will be seeing the track and dragstrip... I dont care if Im short of 500whp at the moment...
I have decided my combo for now...
I ordered my 402 with -10cc pistons and a .045" gasket for a compression ratio of 11.1 :1 , I could have gone with the .040" gasket but I didnt...since I dont want too much compression with the Torquer 3 cam and my 5.3 heads that Im reusing...
FAST 36# injectors
85mm maf SLP, since my old stocker delphi wasnt working
oil pan gasket for when I make a swap
New headbolts
Ill be getting anew crank bolt from my local auto shop, since I forgot to order it...
should this be all I need for a swap?
My goal is to achieve a driveable street car that will be seeing the track and dragstrip... I dont care if Im short of 500whp at the moment...
Thread Starter
11 Second Club
iTrader: (8)
Joined: Aug 2005
Posts: 2,451
Likes: 0
From: Pasadena, CA
Oh dear I must install heads and a cam, yet again...
Im gonna reinstall my old rockers vs the YTs I have now and reuse my caddy lifters. how do I set preload?
Also what engine break in procedures is mostly recommeneded by LS1 users, this will be my first 0 mileage engine Ill have, in any car Ive owned under my name.
DDD
Im gonna reinstall my old rockers vs the YTs I have now and reuse my caddy lifters. how do I set preload?
Also what engine break in procedures is mostly recommeneded by LS1 users, this will be my first 0 mileage engine Ill have, in any car Ive owned under my name.
DDD Thread Starter
11 Second Club
iTrader: (8)
Joined: Aug 2005
Posts: 2,451
Likes: 0
From: Pasadena, CA
oh and I just went with an eagle crank and rods, with upgraded rod bolts.
Honestly I wont be seeing over 650whp with this engine and thats if I choose to use nitrous. which I doubt...
Honestly I wont be seeing over 650whp with this engine and thats if I choose to use nitrous. which I doubt...
Thread Starter
11 Second Club
iTrader: (8)
Joined: Aug 2005
Posts: 2,451
Likes: 0
From: Pasadena, CA
So should I resoak my lifters? and after that, just drop in the lifters and install my old rockers? and thats all??
Also where can I get new rocker pedistools(where the rockers sit on) I have brand new rockers, but dont wanna reuse my old pedistools(plus I think one is bent)
Also where can I get new rocker pedistools(where the rockers sit on) I have brand new rockers, but dont wanna reuse my old pedistools(plus I think one is bent)
From Texas speed
I have decided my combo for now...
I ordered my 402 with -10cc pistons and a .045" gasket for a compression ratio of 11.1 :1 , I could have gone with the .040" gasket but I didnt...since I dont want too much compression with the Torquer 3 cam and my 5.3 heads that Im reusing...
FAST 36# injectors
85mm maf SLP, since my old stocker delphi wasnt working
oil pan gasket for when I make a swap
New headbolts
Ill be getting anew crank bolt from my local auto shop, since I forgot to order it...
should this be all I need for a swap?
My goal is to achieve a driveable street car that will be seeing the track and dragstrip... I dont care if Im short of 500whp at the moment...
I have decided my combo for now...
I ordered my 402 with -10cc pistons and a .045" gasket for a compression ratio of 11.1 :1 , I could have gone with the .040" gasket but I didnt...since I dont want too much compression with the Torquer 3 cam and my 5.3 heads that Im reusing...
FAST 36# injectors
85mm maf SLP, since my old stocker delphi wasnt working
oil pan gasket for when I make a swap
New headbolts
Ill be getting anew crank bolt from my local auto shop, since I forgot to order it...
should this be all I need for a swap?
My goal is to achieve a driveable street car that will be seeing the track and dragstrip... I dont care if Im short of 500whp at the moment...
http://www.mototuneusa.com/break_in_secrets.htm
Trending Topics
Thread Starter
11 Second Club
iTrader: (8)
Joined: Aug 2005
Posts: 2,451
Likes: 0
From: Pasadena, CA
Did you figure your DCR for the new setup or just the SCR. And as far as break in this link is the best I've ever seen. Motoman knows his ****.
http://www.mototuneusa.com/break_in_secrets.htm
http://www.mototuneusa.com/break_in_secrets.htm
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo You have to download a DCR calculator. Well, I mean I'm sure you could just do the math. And you have to know the IVC on your cam. A search should get you both things fairly easily. Depending on what your DCR is you may want to run a thinner head gasket. 11.1:1 isn't that high and the added benefits of a lower quench height would help reduce detonation.
Thread Starter
11 Second Club
iTrader: (8)
Joined: Aug 2005
Posts: 2,451
Likes: 0
From: Pasadena, CA
You have to download a DCR calculator. Well, I mean I'm sure you could just do the math. And you have to know the IVC on your cam. A search should get you both things fairly easily. Depending on what your DCR is you may want to run a thinner head gasket. 11.1:1 isn't that high and the added benefits of a lower quench height would help reduce detonation.
what is IVC?
Intake Valve Closed timing. It's the point where the intake valve closes. Since the intake valve doesn't close until after the piston has already started the compression stroke, your DCR measures the amount of stroke left after the valve closes. Make sure you get the seat timing number (.006). I use the Pat Kelly DCR calc.
Thread Starter
11 Second Club
iTrader: (8)
Joined: Aug 2005
Posts: 2,451
Likes: 0
From: Pasadena, CA
I downloaded the DCR calculator But I dont know all the numbers
for example my heads are the 5.3 stage 2.5 heads, 862 casting
231/234 .643"/.598" 111 LSA cam
I think theyre 220cc total, but individual that will divide to 55cc per combustion chamber and that seems too low...
plus the piston to deck clearance, what is that? I put 0
and of course the ls2 stroker is a 4" x 4" bore and stroke making 402 cid
and going with -10cc valve relief pistons and .045" gaskets...
Im doing this @ work btw
for example my heads are the 5.3 stage 2.5 heads, 862 casting
231/234 .643"/.598" 111 LSA cam
I think theyre 220cc total, but individual that will divide to 55cc per combustion chamber and that seems too low...
plus the piston to deck clearance, what is that? I put 0
and of course the ls2 stroker is a 4" x 4" bore and stroke making 402 cid
and going with -10cc valve relief pistons and .045" gaskets...
Im doing this @ work btw
But I dont know all the numbers
for example my heads are the 5.3 stage 2.5 heads, 862 casting
231/234 .643"/.598" 111 LSA cam
I think theyre 220cc total, but individual that will divide to 55cc per combustion chamber and that seems too low...
plus the piston to deck clearance, what is that? I put 0
and of course the ls2 stroker is a 4" x 4" bore and stroke making 402 cid
and going with -10cc valve relief pistons and .045" gaskets...
Im doing this @ work btw
for example my heads are the 5.3 stage 2.5 heads, 862 casting
231/234 .643"/.598" 111 LSA cam
I think theyre 220cc total, but individual that will divide to 55cc per combustion chamber and that seems too low...
plus the piston to deck clearance, what is that? I put 0
and of course the ls2 stroker is a 4" x 4" bore and stroke making 402 cid
and going with -10cc valve relief pistons and .045" gaskets...
Im doing this @ work btw
Ok, through some searching. I found that the IVC of your cam is 42.5 (it will vary based on cam grinding tolerances, but hopefully not that much) and the cc on those heads is somewhere in the ballpark of 63 (I couldn't find much info here, it would probably be best to cc them yourself). The 220 number is the volume of the intake port not the combustion chamber.
Piston to deck is the measurement of the piston and TDC in relation to the deck of the block. Most LS1s are in the -.005 to -.010 range. Negative numbers mean that the pistons come out of the hole (or above the block deck).
Using 4"x4", 63cc, .045 gasket, 4.01 basket bore, -.007 deck, and -10cc pistons I come up with 11.1 SCR, which is decent. Bad part is with the 42.5 IVC of the Torquer V.3 the DCR comes up to 10.18, which is way to much. Theres is no way that this will run on pump gas.
You need a bigger cam or a hook up on race gas. I would say the cam would probably be the better route. And if you're gonna have to get a cam it's best to get one custom ground for your application.
Someone please chime in if I did something wrong here. I've been known to let a few typos slide past me from time to time.
Last edited by JonCR96Z; Mar 10, 2008 at 11:02 PM.
Thread Starter
11 Second Club
iTrader: (8)
Joined: Aug 2005
Posts: 2,451
Likes: 0
From: Pasadena, CA
Ok, through some searching. I found that the IVC of your cam is 42.5 (it will vary based on cam grinding tolerances, but hopefully not that much) and the cc on those heads is somewhere in the ballpark of 63 (I couldn't find much info here, it would probably be best to cc them yourself). The 220 number is the volume of the intake port not the combustion chamber.
Piston to deck is the measurement of the piston and TDC in relation to the deck of the block. Most LS1s are in the -.005 to -.010 range. Negative numbers mean that the pistons come out of the hole (or above the block deck).
Using 4"x4", 63cc, .045 gasket, 4.01 basket bore, -.007 deck, and -10cc pistons I come up with 11.1 SCR, which is decent. Bad part is with the 42.5 IVC of the Torquer V.3 the DCR comes up to 10.18, which is way to much. Theres is no way that this will run on pump gas.
You need a bigger cam or a hook up on race gas. I would say the cam would probably be the better route. And if you're gonna have to get a cam it's best to get one custom ground for your application.
Someone please chime in if I did something wrong here. I've been known to let a few typos slide past me from time to time.
Piston to deck is the measurement of the piston and TDC in relation to the deck of the block. Most LS1s are in the -.005 to -.010 range. Negative numbers mean that the pistons come out of the hole (or above the block deck).
Using 4"x4", 63cc, .045 gasket, 4.01 basket bore, -.007 deck, and -10cc pistons I come up with 11.1 SCR, which is decent. Bad part is with the 42.5 IVC of the Torquer V.3 the DCR comes up to 10.18, which is way to much. Theres is no way that this will run on pump gas.
You need a bigger cam or a hook up on race gas. I would say the cam would probably be the better route. And if you're gonna have to get a cam it's best to get one custom ground for your application.
Someone please chime in if I did something wrong here. I've been known to let a few typos slide past me from time to time.
Hey man I appreciate the time and effort you put in to this..
Im trying to stay as mild as possible with this cam, for driveability..... So what kind of duration and LSA cam am I looking at here ?
also should I go with a thinner or thicker gasket or is the .045" gasket just fine? I only have 91 octane here in CA...
and the deck I need to be looking at is on a LS2 stroker block...
and Im unsure about the head but it seems right. I have no tools to cc the heads.. well in cyl head rbld class we just filled it with a dyed liquid and measuered how much it would take with a flat plexiglass piece with a small hole and some clay to seal the corners and refill the beaker...
edit: nvm I see the 4x4 BxS you used for the deck
Last edited by LSGunZ28; Mar 11, 2008 at 05:06 AM.
That cam is usually +0 from TSP. If that's the case, then your DCR would be 8.45:1. If the cam is +2 advance, then your DCR would be 8.61. Well within what you can run on 91 octane.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Thread Starter
11 Second Club
iTrader: (8)
Joined: Aug 2005
Posts: 2,451
Likes: 0
From: Pasadena, CA
Thread Starter
11 Second Club
iTrader: (8)
Joined: Aug 2005
Posts: 2,451
Likes: 0
From: Pasadena, CA
I still would like people to chime in....
is it worth going with a thinnger gasket
what spark plugs to run and what to gap them at?
etc...
My stupid parts store doesnt have a crank bolt
edit: Also what clutch for my application. I posted in the maual trans section but the responses are minimal.. and Ihope TSP got me the right reluctor wheel for my car. Im sure he did... he knows its a camaro...
is it worth going with a thinnger gasket
what spark plugs to run and what to gap them at?
etc...
My stupid parts store doesnt have a crank bolt
edit: Also what clutch for my application. I posted in the maual trans section but the responses are minimal.. and Ihope TSP got me the right reluctor wheel for my car. Im sure he did... he knows its a camaro...
Last edited by LSGunZ28; Mar 13, 2008 at 03:00 AM.
Thread Starter
11 Second Club
iTrader: (8)
Joined: Aug 2005
Posts: 2,451
Likes: 0
From: Pasadena, CA
some are in the gen III section...
anyways long story short
my reluctor wheel died after my head/cam, new exhaust setup AND after it was all tuned and ready to go..
Figured its a couple grand more, but I might as well go with a 402, and keep my old LS1 block and rebuild that later when I have more money...
maybe stroke it and put it in my suburban instead of that heavy 5.3 in there.