will a 454 fit and buckle up to a transmission in place of a 350

Asked by May 30, 2012 at 11:05 PM about the 1989 Chevrolet C/K 1500

Question type: Maintenance & Repair

16 Answers

465

You will probably need to change the frame motor mounts as they are usually taller & further forward on a big block to allow clearances from the firewall & cross member. Other than that, it should go right in.

5 of 5 people found this helpful.
9,815

you will also need to add heavier front end parts (springs, etc.) to hold up to the extra weight or your wheels will end up bowing out to the sides.

2 of 2 people found this helpful.
615

if it is a 6lug wheel NO if it is an 8 lug Yes if its a 700R4 trans, maybe Yes I know they made a 1500SS with a 454 It is heavily modified to take the extra power and weight from a standard 1500

18,275

No, Big block chevy's and small block chevy's transmissions have different bolt patterns for the bell housing.

6 of 6 people found this helpful.
1,865

all chevy V8 s have same bell housing bolt pattern

9 of 9 people found this helpful.
18,275

Thats for pointimg that out. After i posted that it didnt feel right. There was a problem tho. Something with the flywheel size cause it was balanced with it. But this was an older motor so it may be different with a newer one.

2 of 2 people found this helpful.
30

mt monarch has it straight, in fact, the 350 and 400 turbo trans will bolt all the the way from a 250 in line 6 to the 454. as far as the fly wheel, its balanced to the engine, thats why unless it damaged you dont replace them when you replace a tranny. Just run the flywheel that goes with the engine you change to.

3 of 3 people found this helpful.
120

Can I pull out of 350 and bolt in a 454 in a 1975 Chevy truck

12 of 12 people found this helpful.
210

I have a 1993 Chevy 1500 with a 350. What will I have to change/do to fit a 454 .

21 of 21 people found this helpful.
40

I have a 1983 chevy 1500 pickup with a 305 and I want to put a 93 350 engine in it, will it fit?

4 of 4 people found this helpful.
61,045

A turbo 350 trans won't last long bolted up to a big block.

1 of 1 people found this helpful.
18,275

Grahajad, yes a 350 will bolt in place of a 305

2 of 2 people found this helpful.

What would it take to put a 350-1 Windsor into my 1987 s10

Just did a 454 swap in a 88 1500 4x4 and I'm looking to put a 5 speed in it any ideas on trans and transfer case I would need for this to be accomplished?

Will a 97 Vortech 454 pulled up to a turbo 400 and trans ?

Will a 97 Vortech 454 bolt up to a older turbo 400 and if so which flexplate will Bolt up to the Vortech is the converter holes the same ?

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