I6 to 454 Swap?

[sweetk30]

for the most part bolt in with the correct frame mounts and engne mounts for the new truck its going in .

and yes exhaust / some small little parts / but to be correct the front coils from I6 to big block are different part #'s for the heavy engine . so if keeping it stock then coil swap . if lowering it try it and or get the correct coils as to desired height .

the rad will need swapped also with the shroud as the big block is a 3 or 4 core over the little one for the 6 cyl .

watch for drive shaft length . and the th400 is prob a 32 spline rear output for the drive shaft yoke over the 27 spline from the old drive-line combo .

[tucsonjwt]

I don't know about the later models, but my 73 454 and my current 83 454 both used standard V8 truck radiators which were 2 core, but they were thicker than most radiators. The one I currently have in the 83 came from AutoZone and is a thicker 2 core aluminum and plastic one from Spectra. It cools fine in the 100+ degree desert heat. I have given up on copper/brass radiators.

Personally, I would stay away from headers, since the BB takes up a lot of under hood space as it is, but I know a lot of people like headers anyway.

[81ChevyC10inSC]

Originally Posted by sweetk30

for the most part bolt in with the correct frame mounts and engne mounts for the new truck its going in .

and yes exhaust / some small little parts / but to be correct the front coils from I6 to big block are different part #'s for the heavy engine . so if keeping it stock then coil swap . if lowering it try it and or get the correct coils as to desired height .

the rad will need swapped also with the shroud as the big block is a 3 or 4 core over the little one for the 6 cyl .

watch for drive shaft length . and the th400 is prob a 32 spline rear output for the drive shaft yoke over the 27 spline from the old drive-line combo .

I plan on lowering the truck a little, not slamming it. So i might be looking at replacing the front coils anyway. So i would need a new Yoke if i went with the th400 and maybe even a shorter drive shaft is what i am hearing?

[CarolinaHD]

Which l6 engine do you have now?

[81ChevyC10inSC]

Originally Posted by CarolinaHD

Which l6 engine do you have now?

The 4.1L 250cid

[87 STEPPER]

I'm not sure what the roads are like in Greer but if you drop that rat motor in your truck and don't change your front springs your gonna bottom out your suspension and maybe wipe out your lower control arms.

If your gonna lower the truck do it the correct way and either get drop spindles or dropped coil springs for a BBC C10. Don't use the weight of the engine to lower the vehicle and expect it to work like it was designed to.

[sweetk30]

Originally Posted by 87 STEPPER

I'm not sure what the roads are like in Greer but if you drop that rat motor in your truck and don't change your front springs your gonna bottom out your suspension and maybe wipe out your lower control arms.

If your gonna lower the truck do it the correct way and either get drop spindles or dropped coil springs for a BBC C10. Don't use the weight of the engine to lower the vehicle and expect it to work like it was designed to.

x2

[81ChevyC10inSC]

Originally Posted by 87 STEPPER

I'm not sure what the roads are like in Greer but if you drop that rat motor in your truck and don't change your front springs your gonna bottom out your suspension and maybe wipe out your lower control arms.

If your gonna lower the truck do it the correct way and either get drop spindles or dropped coil springs for a BBC C10. Don't use the weight of the engine to lower the vehicle and expect it to work like it was designed to.

Agree 100%. I will lower it with spindles and i will replace the coils. I dont need to bounce for an hour after hitting a bump.

[legendman]

Originally Posted by 87 STEPPER

I'm not sure what the roads are like in Greer but if you drop that rat motor in your truck and don't change your front springs your gonna bottom out your suspension and maybe wipe out your lower control arms.

If your gonna lower the truck do it the correct way and either get drop spindles or dropped coil springs for a BBC C10. Don't use the weight of the engine to lower the vehicle and expect it to work like it was designed to.

The big block is a about 260 lbs heavier, I doubt he is going to bottom out his suspension. if it's on stock springs

Originally Posted by blkcorvair

I did find this:

Chevy Sprint 993cc L4 147 (55) 24L x 20W x 25H (Suzuki mfr)
Chevy 1.8-2.0 L4 302 (4) (39) "J car" pushrod
Chevy Chevette 1.6 SOHC 300 (4) (39) (also Opel)
Chevy Vega L4 285
Chevy II 153 L4 350
Chevy L6 194-250 440
Chevy L6 292 ---
Chevy L6 216/235 630 (2)
Chevy L6 216/235 615 (88) "265 V8 was 40# lighter than 235"
Chevy V6-90 229, 4.3 425
Chevy V6-60 2.8, 3.1 350 (2)
Chevy small block V8 575 (generic for '60s-'70s motors)
Chevy small block V8 535 (1) ('59 Corvette 283 w/alum. intake)
Chevy LT-5 DOHC 5.7 600 (122)
Chevy L98 5.7 V8 600 (122)
Chevy V8 348/409 620 (1)
Chevy V8 348/408 655 (83)
Chevy big block V8 685 Mark IV
Chevy big block V8 --- Mark V
Chevy 454 675 (10)
Chevy 427 ZL-1 550 (35) all-aluminum, "20# lighter than SB"

[81ChevyC10inSC]

Currently what the truck looks like now