V8 in TF mounting questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

B17CRX · 10-04-2009, 02:39 PM

I am test fitting my 327/th350 combo so I can finalize the mounting/location of my new ATM x-member and as it sits it is rocked back at an angle. Should the valve covers be parallel with the frame rails or should the motor sit lower in the rear. Its been so long since I have had a engine in the truck that I can't remember how it sat with the 4spd.

-Joel

OrrieG · 10-04-2009, 02:53 PM

The intake manifold carb mounting surface needs to be level, which will drop the back of the engine about 4 degrees if my memory is working right. You also need to consider if the truck will have any rake with the front angled down. If you engine is injected I don't think it is as critical as with a carberurated engine. You want to have your carb float(s) level during most driving conditions.

B17CRX · 10-04-2009, 03:08 PM

Quote:

Originally Posted by OrrieG

The intake manifold carb mounting surface needs to be level, which will drop the back of the engine about 4 degrees if my memory is working right. You also need to consider if the truck will have any rake with the front angled down. If you engine is injected I don't think it is as critical as with a carberurated engine. You want to have your carb float(s) level during most driving conditions.

Ok that should be easy enough to measure, thanks OrrieG!

-Joel

OrrieG · 10-04-2009, 03:11 PM

pull the top off the air cleaner and measure level across the bottom piece, it should be parallel with the carb base, also check side to side those front mounts can get tweaked, rubber compressed, etc. I know from experience.

10-04-2009, 02:39 PM	#1
B17CRX Registered User Join Date: Mar 2008 Location: Monroe, WA Posts: 181	V8 in TF mounting questions I am test fitting my 327/th350 combo so I can finalize the mounting/location of my new ATM x-member and as it sits it is rocked back at an angle. Should the valve covers be parallel with the frame rails or should the motor sit lower in the rear. Its been so long since I have had a engine in the truck that I can't remember how it sat with the 4spd. -Joel

10-04-2009, 02:53 PM	#2
OrrieG Registered User Join Date: Jun 2006 Location: Idaho Posts: 8,800	Re: V8 in TF mounting questions The intake manifold carb mounting surface needs to be level, which will drop the back of the engine about 4 degrees if my memory is working right. You also need to consider if the truck will have any rake with the front angled down. If you engine is injected I don't think it is as critical as with a carberurated engine. You want to have your carb float(s) level during most driving conditions. __________________ 1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project Last edited by OrrieG; 10-04-2009 at 02:56 PM.

10-04-2009, 03:11 PM	#4
OrrieG Registered User Join Date: Jun 2006 Location: Idaho Posts: 8,800	Re: V8 in TF mounting questions pull the top off the air cleaner and measure level across the bottom piece, it should be parallel with the carb base, also check side to side those front mounts can get tweaked, rubber compressed, etc. I know from experience. __________________ 1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project Last edited by OrrieG; 10-04-2009 at 03:12 PM.



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