ls swap im my 61 apache - The 1947 - Present Chevrolet & GMC Truck Message Board Network

KBoz · 12-31-2011, 03:46 AM

im having clearance issues with my exhaust manifold because i raised my crossmember up. i now i can use vette manifolds but im not sure what will work better? its a LS 4.8 L motor out of a silverado

Crash_OK · 12-31-2011, 10:28 AM

Quote:

Originally Posted by KBoz

im having clearance issues with my exhaust manifold because i raised my crossmember up. i now i can use vette manifolds but im not sure what will work better? its a LS 4.8 L motor out of a silverado

From the research that I have done a set of Trail blazer SS manifolds would work for you.. My truck is a 72, but the pistures you posted look very much like mine... Hope this helps.

usmcchevy · 12-31-2011, 10:36 AM

I'll second the TBSS manifolds. Or are the 63 frames narrower then the 67-72?

BR3W CITY · 12-31-2011, 12:55 PM

x3 on tbss, check my build, i squeezed them in my '66 next to a 4l80e

I've heard the new camaro headers fight tight to the block, but the issue is the angle of the output.
The tbss manifolds have output flanges that tuck pretty close to the block, and clearance the perches and frame.

KBoz · 12-31-2011, 04:20 PM

Ok Kool thanks.and I don't think it's narrower but I did raise my crossmember to clear the ground .one plus is I can keep the ax compressor in the factory location
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12-31-2011, 03:46 AM	#1
KBoz Registered User Join Date: Dec 2011 Location: Brenham TX Posts: 60	ls swap im my 61 apache im having clearance issues with my exhaust manifold because i raised my crossmember up. i now i can use vette manifolds but im not sure what will work better? its a LS 4.8 L motor out of a silverado Attached Images

12-31-2011, 10:36 AM	#3
usmcchevy Has more rust than truck... Join Date: Apr 2005 Location: Ivanhoe, MN Posts: 2,421	Re: ls swap im my 61 apache I'll second the TBSS manifolds. Or are the 63 frames narrower then the 67-72? __________________ 1972 Custom/10 SWB, 4.8/4l80e Build thread LSx Swap FAQ index

12-31-2011, 12:55 PM	#4
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: ls swap im my 61 apache x3 on tbss, check my build, i squeezed them in my '66 next to a 4l80e I've heard the new camaro headers fight tight to the block, but the issue is the angle of the output. The tbss manifolds have output flanges that tuck pretty close to the block, and clearance the perches and frame. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

12-31-2011, 04:20 PM	#5
KBoz Registered User Join Date: Dec 2011 Location: Brenham TX Posts: 60	Re: ls swap im my 61 apache Ok Kool thanks.and I don't think it's narrower but I did raise my crossmember to clear the ground .one plus is I can keep the ax compressor in the factory location Posted via Mobile Device Posted via Mobile Device __________________ 1961 Chevy Apache 4.8L/4l60e with gmc grill 1998 Chevy Silverado 3/5 drop also with gmc grill

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