Chevy Nova

What is Compression specs for 1974 nova 350?

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2007-12-06 05:22:15
2007-12-06 05:22:15

Compression ratio on a 1974 Chevy 350 in a Nova was 8.5:1.

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8.5 to 1 compression is factory stock.


I have a 1974 nova CUSTOM(4-door) 350 with (ac) and it costed $3125 from the dealership in November 1974. I still have the original bill of sale.


the 70 engine came in a couple of different horsepower ratings and had higher compression ratios than the 73 model 350 and the 350 of 73 only came in one horsepower rating and was smogged down with emission controls.


Answerapprox. 8 quarts (plus shipping and handling)


The novas had two type of engines, If I remember the one for yours might be a 350, I had a nova '68 , had a 307 short block in it, but a old friend had a nova 2 dr coup which had a 350 in it back in the year of 1978.


A Turbo 350 would be the best and most logical choice


first make sure the cylinder you are doing is at TDC on the compression stroke. Next you tighten those rockers at zero lash (so there is no play in them) and then tighten them down 3/4 - 1 1/2 turns more. hope this helps



I don't see why not,in my book a 350 is a good motor and will fit in i don't see why not,if they put 350's in a s-10 pick-up than it should fit in a nova,i have a nova it has a 307,i'm going to one day put a 350 in it,mines a 72 nova.


http://www.boxwrench.net/specs/chevy_sb.htm


It al depends on your driving habits. Generally you can expect between 17 and 19 miles per gallon.


most commonly either a 250 V6 or 350 V8, Although larger engines are often dropped in aftermarket


Need more info - cam specs - intake type - compression ratio - valve size - headers? - type of fuel


The compression ratio of a 350 Chevy engine usually ranges from 8.0 and 9.0 to 1. This provides a good balance of fuel economy and power.


A 260 what, on a 350 what, might help us answer that.


If it is a 350 (5.7L) V8 the torque specs are 25 lb/ft. Use an anti-sieze coumpound.If it is a 350 (5.7L) V8 the torque specs are 25 lb/ft. Use an anti-sieze coumpound.


They are basically the same. It may change the compression ratio slightly depending on the heads. You can find the casting number in the rocker arm area and compare specs using those numbers.



http://www.boxwrench.net/specs/chevy_sb.htm


yes the 1974 caprice classic came with a 350 small block


Not a good idea. 350 heads will lower compression to 7 to 1 or less.


then youre running about 8.5:1 compression


There are no torque specs for a 350 Chevy. Follow the valve adjustment instructions in any repair manual for any small block Chevy.


there is no such thing as a 77 nova ss last year was 76 that had a 350


70 ft ponds and start in middle and go in circlevisit boxwrench.net/specs/chevy_sb.htm



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