Will a chevy 427 engine in a 1989 Camaro IROC require a lot of mods?

Asked by Jul 01, 2014 at 09:09 AM about the 1989 Chevrolet Camaro IROC-Z Coupe RWD

Question type: Car Customization

I have a 1989 Camaro IROC 5.7 and was thinking about a 427 crate engine. Is this swap a
big deal that requires a lot of mods?

2 Answers

25,615

should fit in with a little cutting- to clear the headers, etc.- but you will need a new tranny and rear end to match- and more- you are planning high-po and the 89 Camaro is anything but- I like your macho idea-

19,805

The car was put together to handle the smaller 350 CI engine and weight. You will need to redo your entire front suspension to handle the heavier weight. The transmission may not fit/bolt up to the motor. It also may not handle the increase of power. The rear suspension and drive line will need beefing up with heavy duty components. Engine mounts and transmission mounts also may not line up. The radiator system will have to be upgraded, smog and other electronic devices need to be addressed. If it's HP you are wanting, you can do a lot with the 350 you have with far less cost. Bore it out, stroke it, new big cam, heads, either larger carberators or good aftermarket EFI. For around $2400 you can get a new transmission and drive shaft that will match the engine and fit. You will or should get a larger radiator also. High flow water pump and upgrade your electric fans. It will not only get more HP than the 427, but rev faster and higher.

2 people found this helpful.
Best Answer Mark helpful

Your Answer:

Chevrolet Camaro Experts

  • #1
    dandyoun
    Reputation
    1,760
  • #2
    carGrrl
    Reputation
    1,270
  • #3
    Tom Demyan
    Reputation
    1,200
View All

Related Models For Sale

Used Ford Mustang
273 Great Deals out of 37,582 listings starting at $1,350
Used Chevrolet Corvette
81 Great Deals out of 15,015 listings starting at $3,620
Used Ford F-150
2,230 Great Deals out of 209,288 listings starting at $1,300
Used BMW 3 Series
826 Great Deals out of 31,378 listings starting at $900
Used Jeep Wrangler
225 Great Deals out of 16,773 listings starting at $3,000
Used Pontiac Firebird
6 Great Deals out of 661 listings starting at $4,700
Used Honda Accord
540 Great Deals out of 103,313 listings starting at $950

Used Cars For Sale

2018 Chevrolet Camaro For Sale
18 Great Deals out of 12,519 listings starting at $17,900
2017 Chevrolet Camaro For Sale
35 Great Deals out of 4,922 listings starting at $14,103
2016 Chevrolet Camaro For Sale
9 Great Deals out of 921 listings starting at $17,000
2015 Chevrolet Camaro For Sale
54 Great Deals out of 2,248 listings starting at $11,995
2014 Chevrolet Camaro For Sale
29 Great Deals out of 1,502 listings starting at $10,990

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.