I have a 1968 Malibu w/ a 327-275HP, 2-speed powerglide and 3.36 gears. I was thinking about putting this engine in http://www.proformanceunlimited.com/specs/327/327_375_carb.html and swapping the powerglide for a TH350 transmission.

Has anyone ordered a crate motor from pro-formance unlimited before or know anything about their reputation? New Jersey Better Business Bureau had no complaints about them. I realize they are a bit expensive, but my Dad has offered to split the bill with me (he has a thing for 327's).

This car is going to be a semi-daily driver/weekend cruiser with both highway driving and around town driving. Will that crate motor, the TH350, and 3:36 gears be a good combination for my driving needs? Thanks in advance.

Mark

What is the compression ratio of that motor? I'm guessing maybe 9.5:1 from the pics? I'd say it'll work well, I have 327 small journal thats 10:1, TH350 and 3.36 rear end, I like how it runs. Definitely a weekend cruiser. Now, depends on your rear tire size but I have 275-60-15s and @70mph, it runs about 31-3200rpm.

To drop it, I might look into a 700R4 or a 2004R, that would really make it a cruiser/semi-daily driver. Food for thought.....

That's about the rpm I was expecting. Thanks for the reply.

According to the sales rep it's 10:1 compression and ~385 ft. lbs. torque. I just noticed the 327 is a large journal block. What's the difference between a small and large journal block?

It's got a 350 rod and main medium journal sized 327 crank in it is all!

Up to '67 everything EXCEPT the then brand new '67 Camaro 350SS engine had small rod and main journals so in '68 GM gave all the engines the 350 sizes until the large main journal 400 SB came out!

The 400 got larger mains but kept the 350 rod journal size is all.

pdq67

PS.,

SJ = 2.00" rods/2.30" mains;

MJ = 2.10" rods/2.45" mains; and

LJ = 2.10" rods/2.65" mains.