Moving engine forward - The 1947 - Present Chevrolet & GMC Truck Message Board Network

OldCreek · 08-01-2007, 02:12 PM

Need to move engine forward from the stock 4wd position. Will move approximately 3.5 inches forward to clear the longer 700r4 and spacer. Suburban is stock height.

Any issues with the engine crossmember mount and front differential? Perhaps a low profile ORD mount would be better? Clearance looks tight if the suspension is at full compression.

I guess I could move the 205 rearward but I would like to pull the engine away from the firewall. I'd rather not split the difference... seems like twice the work.

Thanks.

Musclerodz · 08-01-2007, 02:48 PM

I am in the same boat on my 4L80E/205 install and will probably be splitting the difference. Wasn't my first choice but I am pretty sure the motor won;t go foward the full 3.5 inches.

Mike

pumpkin · 08-02-2007, 10:13 AM

I'm doing a 700r4 with a 205 and I moved the engine forward 1.75". I had a shorter output shaft put in the trans, so it bolted up directly to where the th350 was. I don't think I'll have clearance problems with the 4" lift, and it will get the distributor away from the firewall.

Chris27 · 08-02-2007, 02:19 PM

Quote:

I'm doing a 700r4 with a 205 and I moved the engine forward 1.75". I had a shorter output shaft put in the trans, so it bolted up directly to where the th350 was. I don't think I'll have clearance problems with the 4" lift, and it will get the distributor away from the firewall.

I did the exact same thing in my 72 K5. No lift. No clearance issues. With 4" lift you got nothing to worry about.

08-01-2007, 02:12 PM	#1
OldCreek Registered User Join Date: Jan 2007 Location: Central Coast California Posts: 1,026	Moving engine forward Need to move engine forward from the stock 4wd position. Will move approximately 3.5 inches forward to clear the longer 700r4 and spacer. Suburban is stock height. Any issues with the engine crossmember mount and front differential? Perhaps a low profile ORD mount would be better? Clearance looks tight if the suspension is at full compression. I guess I could move the 205 rearward but I would like to pull the engine away from the firewall. I'd rather not split the difference... seems like twice the work. Thanks. __________________ 1972 K20 Suburban 5.7/700r4/NP205 Dana 44/H052 Sold 1972 C10 5.3L/4L60E 12bolt 5Lug - Sold 1971 K5 Blazer 6.0L LQ9 4L60E NP205 Dana 44/H052!!! 1970 K3500 1ton CrewCab 8.1L/Allison1000/NP205 Dana 60/14B!!!! - Sold 1984 K10 SWB 7.4L/4L80e/NP208 Corp 10/12 bolt Sold 1988 V30 CCLB 7.4L/TH400/NP205/Dana 60/Dana 70/3.73!!! (Sold) 2003 K2500HD 8.1/Allison1000/NP263

08-01-2007, 02:48 PM	#2
Musclerodz Senior Member Join Date: Aug 2005 Location: OKC, OK Posts: 2,364	Re: Moving engine forward I am in the same boat on my 4L80E/205 install and will probably be splitting the difference. Wasn't my first choice but I am pretty sure the motor won;t go foward the full 3.5 inches. Mike __________________ Mike Redpath

08-02-2007, 10:13 AM	#3
pumpkin Registered User Join Date: Apr 2006 Location: East Sooke B.C. Canada Posts: 543	Re: Moving engine forward I'm doing a 700r4 with a 205 and I moved the engine forward 1.75". I had a shorter output shaft put in the trans, so it bolted up directly to where the th350 was. I don't think I'll have clearance problems with the 4" lift, and it will get the distributor away from the firewall.



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