Newbie - Couple of questions...
07-26-2012, 05:21 PM
#1
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Newbie - Couple of questions... Hi,
We are new to the forum (based in the U.K.) & have a couple of (hopefully) basic questions.
We have a LS1 motor in an off road single seat racer. The engine was bought second hand, so we are unsure what vehicle, year etc it came from.
So question 1 - Where is the engine number located & will it give us the year (and any other info) that maybe usefull? For ordering parts etc.
2. What is a safe RPM limit on standard motor internals?
3. Is there an aftermarket rev limiter available to buy & Fit?
We are currently running an Edelbrock LS1 Timing Control module (made by MSD), using the 8 original coil packs & a Carburettor.
Thanks in advance
We are new to the forum (based in the U.K.) & have a couple of (hopefully) basic questions.
We have a LS1 motor in an off road single seat racer. The engine was bought second hand, so we are unsure what vehicle, year etc it came from.
So question 1 - Where is the engine number located & will it give us the year (and any other info) that maybe usefull? For ordering parts etc.
2. What is a safe RPM limit on standard motor internals?
3. Is there an aftermarket rev limiter available to buy & Fit?
We are currently running an Edelbrock LS1 Timing Control module (made by MSD), using the 8 original coil packs & a Carburettor.
Thanks in advance
07-27-2012, 01:24 AM
#2
Hi,
We are new to the forum (based in the U.K.) & have a couple of (hopefully) basic questions.
We have a LS1 motor in an off road single seat racer. The engine was bought second hand, so we are unsure what vehicle, year etc it came from.
So question 1 - Where is the engine number located & will it give us the year (and any other info) that maybe usefull? For ordering parts etc.
2. What is a safe RPM limit on standard motor internals?
3. Is there an aftermarket rev limiter available to buy & Fit?
We are currently running an Edelbrock LS1 Timing Control module (made by MSD), using the 8 original coil packs & a Carburettor.
Thanks in advance
We are new to the forum (based in the U.K.) & have a couple of (hopefully) basic questions.
We have a LS1 motor in an off road single seat racer. The engine was bought second hand, so we are unsure what vehicle, year etc it came from.
So question 1 - Where is the engine number located & will it give us the year (and any other info) that maybe usefull? For ordering parts etc.
2. What is a safe RPM limit on standard motor internals?
3. Is there an aftermarket rev limiter available to buy & Fit?
We are currently running an Edelbrock LS1 Timing Control module (made by MSD), using the 8 original coil packs & a Carburettor.
Thanks in advance
Block Casting Number Engine Model Year Range
12550592 LS1 (5.7L/346ci) 1997
12559846 LS1 (5.7L/346ci) 1998
12559090 LS1 (5.7L/346ci) 1998
12562174 LS1 (5.7L/346ci) 1998
12559846 LS1 (5.7L/346ci) 1998
12560621 LS1 (5.7L/346ci) 1998
1240030 LS1 C5R (5.7L/346ci) C5R Racing Block
12559378 LS1 (5.7L/346ci) 1999-2000
12561168 LS1/LS6 (5.7L/346ci) 2001
12561166 LS1/LS6 (5.7L/346ci) 2001-2004
12568952 LS2 (6.0L/364ci) 2005
12560799 LS2 (6.0L/364ci) 2006-2007
12584724 LS3 (6.2L/376ci) 2008-Present
12598723 LS7 (7.0L/427ci) 2006-Present
12621766 LS9 (6.2L/376ci) 2009-Present
12569513 5.3L Aluminum 2005*
12551358 4.8L/5.3L Cast Iron 1999-2003*
12551364 6.0L Cast Iron 1999-2004
*Year Range Listed is for Known Years only.
Block Casting Number Engine Model Year Range
10212339 LS1 (5.7L/346ci) 1997-1998
12558805 LS1 (5.7L/346ci) 1997-1998
12559852 LS1 (5.7L/346ci) 1999-2001
12564241 LS1 (5.7L/346ci) 2001-2004
12564243 LS6 (5.7L/346ci) 2001-2005
12564243 LS2 (6.0L/364ci) 2005-2007
12600821 LS3 (6.2L/376ci) 2008-Present
12578452 LS7 (7.0L/427ci) 2006-Present
12621771 LS9 (6.2L/376ci) 2009-Present
12559862 LS1/LS6 (5.7L/346ci) 1999-2003*
12561706 4.8L/5.3L Cast Iron 2004*
12562317 4.8L/5.3L Cast Iron 2001-2006*
12572317 6.0L Cast Iron 2001-2006*
12572035 6.0L Cast Iron 2001-2006*
I probably wouldn't go much over 6K with stock internals.
Not really sure about a rev limited for a carb LS1. This might be what you are looking for but some more research may be in order.
http://www.summitracing.com/parts/MSD-6010/
07-27-2012, 01:40 AM
#3
or just check the top of the heads for the casting #
#806 = 97-98 corvette, 98 camaro
#853 = 99-2000 vette, 99-00 camaro
#241 = 01-04 corvette, 01-02 camaro
#243 = ls6 engine from z06 corvette or caddilac cts-v ls6
assuming your engine is untouched the head numbers or block numbers will be your best bet..
#806 = 97-98 corvette, 98 camaro
#853 = 99-2000 vette, 99-00 camaro
#241 = 01-04 corvette, 01-02 camaro
#243 = ls6 engine from z06 corvette or caddilac cts-v ls6
assuming your engine is untouched the head numbers or block numbers will be your best bet..
07-27-2012, 10:53 AM
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Thanks for the pointers I will take a look for the engine number during the weekend.
I probably wouldn't go much over 6K with stock internals.
http://www.summitracing.com/parts/MSD-6010/ Im hoping this is the only damage from a suspected over-rev moment.
I probably wouldn't go much over 6K with stock internals.
http://www.summitracing.com/parts/MSD-6010/
07-28-2012, 03:52 AM
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Hi,
I am hoping that I have got off lightly too. The Pushrod is bent, the rocker arm appears to be in good order. I put petrol in the port to check if the valve was bent, but that stopped on the back of the valve & didnt run into the cylinder.
I cant physically check the hydraulic lifter without taking the head off, but a friend has a camera on a flexi stalk which we used to look at the lifter via the pushrod hole. It doesnt appear to have broken . Im just wondering if it has "jacked up".
I am hoping that I have got off lightly too. The Pushrod is bent, the rocker arm appears to be in good order. I put petrol in the port to check if the valve was bent, but that stopped on the back of the valve & didnt run into the cylinder.
I cant physically check the hydraulic lifter without taking the head off, but a friend has a camera on a flexi stalk which we used to look at the lifter via the pushrod hole. It doesnt appear to have broken . Im just wondering if it has "jacked up".
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08-01-2012, 11:17 PM
#10
Hi,
I am hoping that I have got off lightly too. The Pushrod is bent, the rocker arm appears to be in good order. I put petrol in the port to check if the valve was bent, but that stopped on the back of the valve & didnt run into the cylinder.
I cant physically check the hydraulic lifter without taking the head off, but a friend has a camera on a flexi stalk which we used to look at the lifter via the pushrod hole. It doesnt appear to have broken . Im just wondering if it has "jacked up".
I am hoping that I have got off lightly too. The Pushrod is bent, the rocker arm appears to be in good order. I put petrol in the port to check if the valve was bent, but that stopped on the back of the valve & didnt run into the cylinder.
I cant physically check the hydraulic lifter without taking the head off, but a friend has a camera on a flexi stalk which we used to look at the lifter via the pushrod hole. It doesnt appear to have broken . Im just wondering if it has "jacked up".
