Will It Bolt Right In??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Stepper562 · 03-09-2012, 12:54 AM

Here my issue guys...one of my buddies just got his 454 freshly rebuilt about a year ago which he put about 10k miles on since.

My 350 is leaking oil from the oil pan, leaking antifreeze from a freezeplug behind the starter and she just looks beat to crap but runs strong as a raped ape hehehe. I was thiking of yaking out the 350, cleaning her up, slapping some vortec heads on her, resealing her and slapping her back in. Untill...my buddy offered me his 454, pan to carb for 450 bucks.

My question is, when I bought my truck about a year ago I ran the vin. The original motor was a 454 which I`m assuming got pulled out and replaced at some time. She has a TH400 with a 2 piece shaft. Will the 454 bolt right in without any issues???

Would you guys choose A) Buy the 454 for $450 bucks and slap it in if it will bolt right in assuming she will cause the truck came with a 454 from factory or? B) Yank out the 350, clean, paint, reseal, Vortec heads, bigger cam etc...for about $1000 with parts, time off work (shes my daily driver)???

Any opinion and Input greatly appreciated.

**N2TRUX** · 03-09-2012, 01:11 AM

If it were a numbers matching resto, I might be concerned that it has a BB rather than a SB. Since its not, it really doesn't matter. Unless you just enjoy paying for much more fuel, stick with your SB and freshen it up. No matter what came in the truck you know the SB fits with out any changes.

mud.man.rj · 03-09-2012, 01:12 AM

454's are nothing but cool and will bolt right in but as a daily driver... well probably not so cool unless you own a gas station, I love my 454 everytime I drive it but not everyday. Easy to build Hp with a small block get fairly good mileage and use as a daily driver. I am all about HP but not daily unless your rich.

At $450 I'm sure you will be spending more on it too.

Stepper562 · 03-09-2012, 02:32 AM

Those are the answers I was looking for...Thx gents I guess a frshenin up is due. Keeping the 350 and building it up bit by bit.

By any chance, I know this s completly off the topic but I`ve been reading up on oil blow by. I`m getting a minor oil leak around my breather on the passenger side valve cover and my rubber gromet around the PCV valve on the driver side. Whats up?

INSIDIOUS '86 · 03-09-2012, 03:16 PM

If your engine is older it may not be a good idea to throw on new heads. You will
Make blow by worse more likely or not. Just degrease and reveal with a one peice oil pan gasket. And if your plug is leaking cause it's rusting then replace all the plugs
Posted via Mobile Device

mud.man.rj · 03-09-2012, 03:55 PM

If you had major blowby then it would be venting out the breather cap, unless it is plugged up, most can be washed, also make sure pcv valve is working not hanging up.

oldschool18 · 03-10-2012, 01:39 AM

well i would buy the BB for 450 and then rebuild the 350 for my daily driver and save the BB for a nice project

Blue72slab · 03-10-2012, 01:44 AM

Quote:

Originally Posted by oldschool18

well i would buy the BB for 450 and then rebuild the 350 for my daily driver and save the BB for a nice project

X2 if you have the cash

oldschool18 · 03-10-2012, 02:00 AM

I got 500 in change buried in mason jars in my backyard for just that reason.....haha

03-09-2012, 12:54 AM	#1
Stepper562 Registered User Join Date: Jun 2011 Location: Downey, ca Posts: 262	Will It Bolt Right In??? Here my issue guys...one of my buddies just got his 454 freshly rebuilt about a year ago which he put about 10k miles on since. My 350 is leaking oil from the oil pan, leaking antifreeze from a freezeplug behind the starter and she just looks beat to crap but runs strong as a raped ape hehehe. I was thiking of yaking out the 350, cleaning her up, slapping some vortec heads on her, resealing her and slapping her back in. Untill...my buddy offered me his 454, pan to carb for 450 bucks. My question is, when I bought my truck about a year ago I ran the vin. The original motor was a 454 which I`m assuming got pulled out and replaced at some time. She has a TH400 with a 2 piece shaft. Will the 454 bolt right in without any issues??? Would you guys choose A) Buy the 454 for $450 bucks and slap it in if it will bolt right in assuming she will cause the truck came with a 454 from factory or? B) Yank out the 350, clean, paint, reseal, Vortec heads, bigger cam etc...for about $1000 with parts, time off work (shes my daily driver)??? Any opinion and Input greatly appreciated.

03-09-2012, 01:11 AM	#2
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Re: Will It Bolt Right In??? If it were a numbers matching resto, I might be concerned that it has a BB rather than a SB. Since its not, it really doesn't matter. Unless you just enjoy paying for much more fuel, stick with your SB and freshen it up. No matter what came in the truck you know the SB fits with out any changes. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

03-09-2012, 01:12 AM	#3
mud.man.rj Registered User Join Date: Dec 2011 Location: Creighton Sask. Canada Posts: 4,121	Re: Will It Bolt Right In??? 454's are nothing but cool and will bolt right in but as a daily driver... well probably not so cool unless you own a gas station, I love my 454 everytime I drive it but not everyday. Easy to build Hp with a small block get fairly good mileage and use as a daily driver. I am all about HP but not daily unless your rich. At $450 I'm sure you will be spending more on it too.

03-09-2012, 02:32 AM	#4
Stepper562 Registered User Join Date: Jun 2011 Location: Downey, ca Posts: 262	Re: Will It Bolt Right In??? Those are the answers I was looking for...Thx gents I guess a frshenin up is due. Keeping the 350 and building it up bit by bit. By any chance, I know this s completly off the topic but I`ve been reading up on oil blow by. I`m getting a minor oil leak around my breather on the passenger side valve cover and my rubber gromet around the PCV valve on the driver side. Whats up?

03-09-2012, 03:16 PM	#5
INSIDIOUS '86 Registered User Join Date: Jul 2009 Location: washington Posts: 4,178	Re: Will It Bolt Right In??? If your engine is older it may not be a good idea to throw on new heads. You will Make blow by worse more likely or not. Just degrease and reveal with a one peice oil pan gasket. And if your plug is leaking cause it's rusting then replace all the plugs Posted via Mobile Device __________________ 377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac 3''spintech prostreet mufflers xpipe 1 3/4 headers build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217 Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511

03-09-2012, 03:55 PM	#6
mud.man.rj Registered User Join Date: Dec 2011 Location: Creighton Sask. Canada Posts: 4,121	Re: Will It Bolt Right In??? If you had major blowby then it would be venting out the breather cap, unless it is plugged up, most can be washed, also make sure pcv valve is working not hanging up.

03-10-2012, 01:39 AM	#7
oldschool18 Registered User Join Date: Jan 2010 Location: Hollidaysburg, PA Posts: 785	Re: Will It Bolt Right In??? well i would buy the BB for 450 and then rebuild the 350 for my daily driver and save the BB for a nice project __________________ _________________________________ 62 Impala 70 C-10 LWB 71 K-10 SWB 85 C-10 LWB==SOLD 01 2500 HD Members Met......2003Silverado (Dave)

03-10-2012, 02:00 AM	#9
oldschool18 Registered User Join Date: Jan 2010 Location: Hollidaysburg, PA Posts: 785	Re: Will It Bolt Right In??? I got 500 in change buried in mason jars in my backyard for just that reason.....haha __________________ _________________________________ 62 Impala 70 C-10 LWB 71 K-10 SWB 85 C-10 LWB==SOLD 01 2500 HD Members Met......2003Silverado (Dave)



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