5.3 swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

66shortwide · 09-10-2009, 07:06 PM

What oil pan is everyone using that is doing the ls swap? My motor doesnt seem to sit as low as I thought it would, but I'm running a Flat Out Engineeering crossmember and the corvette rack is keeping the motor from sitting any lower. Currently I have a truck oil pan mounted.

jgarverick · 09-11-2009, 10:02 AM

i used the truck pan with home made adapter plates to the stock perches. i've heard a camaro/trans am pan fits and offers more ground clearance. my motor sits about as low as possible using the stock crossmember. i'm sure some other guys will chime in, i think theres a few on here who have done the conversion.

*CWT* · 09-11-2009, 01:01 PM

Not for sure about in a truck but I know that swapping into a Gbody folks are using a CTS-V pan. They have more clearance.

jason65 · 09-11-2009, 03:34 PM

TimE is doing that. You might check out his thread.

TopFuel1966 · 09-11-2009, 04:21 PM

My '66 has the stock crossmember with ECE motor mounts and the stock pan fits perfectly.

**TR65** · 09-11-2009, 08:10 PM

I am fitting a LS motor right now in my 65. It had the Trailblazer pan and I had to switch to the Silverado pan. I was able to put the crank centerline at the same height as the original 283 I took out. The bottom of the pan sits well below the cross member. It looks like a shorter pan with a longer sump might work as well.

TR

66shortwide · 09-12-2009, 05:23 AM

tr65 - what was the stock 283s crank height? Can you give me that measurement from frame and not the crossmember?

Also, can anyone give me a measurement to the front of the motor? My truck never had an engine in it, so I'm just putting it in as far back adn as low as possible right now.

tomlamb · 09-12-2009, 10:29 AM

I am using the stock pan and motor mounts.

**TR65** · 09-13-2009, 10:05 PM

66ShortWide

I clamped a straight edge to the bottom of the crossmember at the center. The dimension from the bottom of the crossmember to the centerline of the crank at the front pulley was 11" even.

The face of the block was 1" forward of the centerline of the fartherest forward mounting hole on the frame. (There are three holes on top of the frame for engine mounts, my 283 used the rear two.)

I am locating my 6.0 Litre 1" forward of the 283 to allow a little more clearance at the back of the engine, although it would fit in the same location. The ECE mounts look good but a little pricey. I tried the CPP mounts but I have too many interference problems with them, exhaust manifolds and air conditioning compressor. My engine came with the fancy late model (2005) mounts and I am fabricating perches to be able to use them. I will do a thread on it in a couple of weeks.

Good luck,

TR

09-10-2009, 07:06 PM	#1
66shortwide Registered User Join Date: Jan 2007 Location: Hammond, LA Posts: 118	5.3 swap What oil pan is everyone using that is doing the ls swap? My motor doesnt seem to sit as low as I thought it would, but I'm running a Flat Out Engineeering crossmember and the corvette rack is keeping the motor from sitting any lower. Currently I have a truck oil pan mounted. __________________ Trent 12 Cadillac CTS-V 07 Sierra HD 4x4 Duramax 66 C10 Short Wide 63 Chevy II(nova)

09-11-2009, 10:02 AM	#2
jgarverick Registered User Join Date: Feb 2009 Location: columbus ohio Posts: 85	Re: 5.3 swap i used the truck pan with home made adapter plates to the stock perches. i've heard a camaro/trans am pan fits and offers more ground clearance. my motor sits about as low as possible using the stock crossmember. i'm sure some other guys will chime in, i think theres a few on here who have done the conversion. __________________ Jason Garverick 64 C10 SWB Stepside 350/muncie - 5.3 vortec (soon)Thread 69 AMC Javelin 360/auto - 417 stroker (soon) 68 Scout (Basketcase) 06 Ram HEMI SWB Reg Cab Daily Driver US Army Vet

09-11-2009, 01:01 PM	#3
CWT Account Suspended Join Date: Jun 2009 Location: ARAB,ALABAMA Posts: 157	Re: 5.3 swap Not for sure about in a truck but I know that swapping into a Gbody folks are using a CTS-V pan. They have more clearance.

09-11-2009, 03:34 PM	#4
jason65 Registerd User Join Date: Sep 2008 Location: Oklahoma Posts: 2,118	Re: 5.3 swap TimE is doing that. You might check out his thread.

09-11-2009, 04:21 PM	#5
TopFuel1966 Registered User Join Date: Jul 2009 Location: Menifee, CA Posts: 471	Re: 5.3 swap My '66 has the stock crossmember with ECE motor mounts and the stock pan fits perfectly. Attached Images Last edited by TopFuel1966; 09-12-2009 at 11:50 AM.

09-11-2009, 08:10 PM	#6
TR65 Senior Member Join Date: Nov 2007 Location: Greenville, SC Posts: 873	Re: 5.3 swap I am fitting a LS motor right now in my 65. It had the Trailblazer pan and I had to switch to the Silverado pan. I was able to put the crank centerline at the same height as the original 283 I took out. The bottom of the pan sits well below the cross member. It looks like a shorter pan with a longer sump might work as well. TR __________________ 1965 C10 SWB Fleet Two owner LS2 Swap Thread http://67-72chevytrucks.com/vboard/s...d.php?t=413880

09-12-2009, 05:23 AM	#7
66shortwide Registered User Join Date: Jan 2007 Location: Hammond, LA Posts: 118	Re: 5.3 swap tr65 - what was the stock 283s crank height? Can you give me that measurement from frame and not the crossmember? Also, can anyone give me a measurement to the front of the motor? My truck never had an engine in it, so I'm just putting it in as far back adn as low as possible right now. __________________ Trent 12 Cadillac CTS-V 07 Sierra HD 4x4 Duramax 66 C10 Short Wide 63 Chevy II(nova)

09-12-2009, 10:29 AM	#8
tomlamb Registered User Join Date: May 2008 Location: So Cal, CA Posts: 185	Re: 5.3 swap I am using the stock pan and motor mounts. Attached Images

09-13-2009, 10:05 PM	#9
TR65 Senior Member Join Date: Nov 2007 Location: Greenville, SC Posts: 873	Re: 5.3 swap 66ShortWide I clamped a straight edge to the bottom of the crossmember at the center. The dimension from the bottom of the crossmember to the centerline of the crank at the front pulley was 11" even. The face of the block was 1" forward of the centerline of the fartherest forward mounting hole on the frame. (There are three holes on top of the frame for engine mounts, my 283 used the rear two.) I am locating my 6.0 Litre 1" forward of the 283 to allow a little more clearance at the back of the engine, although it would fit in the same location. The ECE mounts look good but a little pricey. I tried the CPP mounts but I have too many interference problems with them, exhaust manifolds and air conditioning compressor. My engine came with the fancy late model (2005) mounts and I am fabricating perches to be able to use them. I will do a thread on it in a couple of weeks. Good luck, TR __________________ 1965 C10 SWB Fleet Two owner LS2 Swap Thread http://67-72chevytrucks.com/vboard/s...d.php?t=413880



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