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

slick78 · 05-31-2008, 02:10 AM

so im replacing the straight 6 and three speed trany on my 1978 stepside.with a 454 and th400.can anyone tell me what parts do i have to get to complete this.like wiring harnes and stuff like that.i would really appreciate it.

PhilaTruck · 05-31-2008, 03:24 AM

Is the 454 injected or carbed?

Is the current 3 speed auto or manual?

Some other stuff you may not have thought of: radiator, driveshaft, various linkages & of course motor mounts.

I haven't done a swap like this, but lot's of members have.

We're gonna need more info to help.

slick78 · 05-31-2008, 11:47 PM

its carb,with a manual three speed.but im changing to automatic floor shifter.so i gota change drive shafts too.im adding power sterring,new radiator.and im going with a comp cam a 230/230 @50 with a edelbrok air gap.and a holley 750.what u guys think about that combo?

87Lowrider · 06-01-2008, 06:02 AM

Quote:

Originally Posted by slick78

its carb,with a manual three speed.but im changing to automatic floor shifter.so i gota change drive shafts too.im adding power sterring,new radiator.and im going with a comp cam a 230/230 @50 with a edelbrok air gap.and a holley 750.what u guys think about that combo?

With the exception of the cam, that's the engine I put in mine. I started with a 350 though. The cam I'm using is a Xtreme Energy 552/550 286 dur. I had the heads opened up with 2.190's / 1.880's too... It's a nasty combo, sounds great. Of course, I put all MSD on it, electric fan, 700R4. Don't know how accurate but Desktop Dyno says 451hp/502ft lbs @ 5500. Workin' on Bags now before I put it back on the road.

slick78 · 06-02-2008, 06:28 PM

so u think its a good combination or not? what u guys think of the cam? should i get a different one.i want power and something that sounds good.is that cam fine?

87Lowrider · 06-02-2008, 11:02 PM

Quote:

Originally Posted by slick78

so u think its a good combination or not? what u guys think of the cam? should i get a different one.i want power and something that sounds good.is that cam fine?

As far as the engine.. depending on how you want it to perform, you can build it like you have it or pump it up a bit. Mine is just mild. www.compams.com has a section where you can listen to their cams.

Kenny

slick78 · 06-03-2008, 03:16 PM

ill check out the web site.but what do u guys think what combo should i get? the one i have or what should i get?

05-31-2008, 02:10 AM	#1
slick78 Registered User Join Date: May 2008 Location: salinas,california Posts: 144	454 engine so im replacing the straight 6 and three speed trany on my 1978 stepside.with a 454 and th400.can anyone tell me what parts do i have to get to complete this.like wiring harnes and stuff like that.i would really appreciate it.

05-31-2008, 03:24 AM	#2
PhilaTruck Right on the line, baby! Join Date: Oct 2003 Location: Phila, PA 19130 Posts: 1,486	Re: 454 engine Is the 454 injected or carbed? Is the current 3 speed auto or manual? Some other stuff you may not have thought of: radiator, driveshaft, various linkages & of course motor mounts. I haven't done a swap like this, but lot's of members have. We're gonna need more info to help. __________________ 83 GMC 406 th400/3.73 Eaton Truetrac posi, headers, x pipe, & racePros. Tubular control arms, lowering rear springs, caltracs. Still ugly, but getting built right, although slowly Click and scroll down for site vendors! Subscribe here!

05-31-2008, 11:47 PM	#3
slick78 Registered User Join Date: May 2008 Location: salinas,california Posts: 144	Re: 454 engine its carb,with a manual three speed.but im changing to automatic floor shifter.so i gota change drive shafts too.im adding power sterring,new radiator.and im going with a comp cam a 230/230 @50 with a edelbrok air gap.and a holley 750.what u guys think about that combo?

06-02-2008, 06:28 PM	#5
slick78 Registered User Join Date: May 2008 Location: salinas,california Posts: 144	Re: 454 engine so u think its a good combination or not? what u guys think of the cam? should i get a different one.i want power and something that sounds good.is that cam fine?

06-03-2008, 03:16 PM	#7
slick78 Registered User Join Date: May 2008 Location: salinas,california Posts: 144	Re: 454 engine ill check out the web site.but what do u guys think what combo should i get? the one i have or what should i get?



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