Well, ran into a problem - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Yukon Jack** · 05-03-2004, 09:42 AM

As many of you know, I am in the middle of a big project that started out with swapping out my 307 small block for a big block. All was going seemingly well. Was tackling the big block fitment issues with a 2" body lift. My truck has been at the paint shop for a while and this weekend they started placing the body on the frame only to find out that I still have a big problem with the engine hitting the firewall. More than likely I will deal with this problem by moving the engine forward about 1 1/2". The bright side is the paint on the truck is looking great and it will all be worth it in the end.

My other two options are to cut and modify the firewall or add a larger body lift. Don't really want to do either of those options but I haven't made up my mind completely yet.

Bram · 05-03-2004, 09:52 AM

Man that really stinks! How many inches forward do you have it right now?

**Yukon Jack** · 05-03-2004, 10:02 AM

The engine is in the facotry small block location. From my research it sure looked like I could leave it there if I did the body lift. Nope!

Tennman · 05-03-2004, 10:03 AM

Looking good man ! Haven't talk to ya in awhile,but i been watching ! I had the same problem. After a 3 inch body lift and a little pecking on the passengers side everything was fine. Aslo got to use the GM electrionic dist. and you know how big they are. I was afraid of moving my engine forward ! Didn't know how it might drive or handle on the highway. I know an airplane flys funny when you get too much weight forward or aft. If you move it forward i'll be curious to know just how it drives,so i'll still be watching for your post man ! Your looking good though man !

Tennman · 05-03-2004, 10:11 AM

By the way,i'll take your project off your hands if your getting tired or bored of it ! *LOL*

Besides,with gas prices going up and up.........your probably won't be able to drive it anyways ?!?!

**Yukon Jack** · 05-03-2004, 10:36 AM

Tennman, so how much did you have to massage the firewall? Your engine was in the small block location, right? We are using the same valve covers so that is good to know you were able to get them to fit. I would be inclined to change from a 2" to a 3" body lift if that would correct the problem I am having, rather than fight moving the engine forward. I sure don't want to do a body lift any bigger than that though.

**JIMs70GMC** · 05-03-2004, 11:45 AM

Looking good!

05-03-2004, 09:42 AM	#1
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	Well, ran into a problem As many of you know, I am in the middle of a big project that started out with swapping out my 307 small block for a big block. All was going seemingly well. Was tackling the big block fitment issues with a 2" body lift. My truck has been at the paint shop for a while and this weekend they started placing the body on the frame only to find out that I still have a big problem with the engine hitting the firewall. More than likely I will deal with this problem by moving the engine forward about 1 1/2". The bright side is the paint on the truck is looking great and it will all be worth it in the end. My other two options are to cut and modify the firewall or add a larger body lift. Don't really want to do either of those options but I haven't made up my mind completely yet. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 Last edited by Yukon Jack; 06-24-2010 at 10:44 AM.

05-03-2004, 09:52 AM	#2
Bram Broke Join Date: Aug 2001 Location: West Plains,MO Posts: 385	Man that really stinks! How many inches forward do you have it right now? __________________ 72CheyenneSuper1ton4x4BigBlock

05-03-2004, 10:02 AM	#3
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	The engine is in the facotry small block location. From my research it sure looked like I could leave it there if I did the body lift. Nope! __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

05-03-2004, 10:03 AM	#4
Tennman 71 Chevy 4x4 Join Date: Jan 2000 Location: McMinnville,Tn. USA Posts: 450	Looking good man ! Haven't talk to ya in awhile,but i been watching ! I had the same problem. After a 3 inch body lift and a little pecking on the passengers side everything was fine. Aslo got to use the GM electrionic dist. and you know how big they are. I was afraid of moving my engine forward ! Didn't know how it might drive or handle on the highway. I know an airplane flys funny when you get too much weight forward or aft. If you move it forward i'll be curious to know just how it drives,so i'll still be watching for your post man ! Your looking good though man ! __________________ Tenn.man(a.k.a.Danny Cummings)

05-03-2004, 10:11 AM	#5
Tennman 71 Chevy 4x4 Join Date: Jan 2000 Location: McMinnville,Tn. USA Posts: 450	By the way,i'll take your project off your hands if your getting tired or bored of it ! LOL Besides,with gas prices going up and up.........your probably won't be able to drive it anyways ?!?! __________________ Tenn.man(a.k.a.Danny Cummings) Last edited by Tennman; 05-03-2004 at 10:13 AM.

05-03-2004, 10:36 AM	#6
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	Tennman, so how much did you have to massage the firewall? Your engine was in the small block location, right? We are using the same valve covers so that is good to know you were able to get them to fit. I would be inclined to change from a 2" to a 3" body lift if that would correct the problem I am having, rather than fight moving the engine forward. I sure don't want to do a body lift any bigger than that though. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

05-03-2004, 11:45 AM	#7
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Looking good! __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

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