Performance Mods for '68 Olds 350

10

Asked by Apr 09, 2017 at 07:31 PM about the 1968 Oldsmobile Cutlass

Question type: General

I've got myself a 68 Cutlass S I picked up a
few months ago and was fortunate enough
to have less than 18k on a rebuilt original
engine (.60 over) & tranny. Only thing is it's
only pushing about 250-255hp as opposed
to the 300-310 I was hoping for when I first
bought it (I only know this by searching the
block numbers). Is there anything
(easy/fairly inexpensive) I can do to get a
little more zip out of it? I'd prefer to not
have to pull the engine as I don't have the
space nor skill/equipment to do so.  If I had
my way I would've gotten a 68 442 but I've
got champagne taste with a Miller High
Life wallet.  Thanks in advance!!

2 Answers

95,085

Not cheaply, and certainetly not without pulling some part of the engine apart. There are timing recurve kits and rejetting the carb to get a few more ponies out of it, but if you want something more serious then you will have go go much deeper, You could start with closed chamber heads, that will raise the compression some, pistons, cam, stroker kit, and so on. Remember power costs, so the more ponies you want the more it will cost.

95,085

If it was my car I would leave it alone, or possibly sell it when I found what I wanted.

Your Answer

Add photo

Related Questions

Search Oldsmobile Cutlass Questions

Oldsmobile Cutlass Experts

#1 F_O_R
F_O_R
Reputation 150
#2 bluRAYwhale
bluRAYwhale
Reputation 100
#2 Js08016
Js08016
Reputation 100
View All

Related Models For Sale

Used Chevrolet Camaro
848 listings starting at $8,995
Used Chevrolet Impala
59 Great Deals out of 982 listings starting at $799
Used Chevrolet Corvette
658 listings starting at $4,450
Used Pontiac GTO
3 listings starting at $13,900
Used Dodge Charger
85 Great Deals out of 917 listings starting at $3,990
Used Ford Mustang
4 Great Deals out of 1,358 listings starting at $5,980

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.