1st gen. 327
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From: Wisconsin
Car: 91' S-10
Engine: 3.4 liter Camaro
Transmission: Borg Warner T5
1st gen. 327
Hello all, First post on this forum. I have a new project and I think this will be the best place to ask my questions. I have a chance to get a 327 from a 69' Camaro, I would like to put a TPI system on it. Will a older mid 60's -70's sbc block work with a 80's TPI system? If so is there a particular year TPI that would be the best donor? Thanks for the help
I cant help you on the answer, but i am also thinking about doing the same setup. I am looking foward to some info on this subject. When i do the swap, i want ot put a t56 in with it.
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Yes it will bolt on.
TPI is all the same, with minor variations. It doesn't matter whether it came from a 305 or a 350. Only major difference is injector size. 350 injectors are probably more appropriate as is the 350 knock sensor.
There are a couple of year-model differences too; 86-back used the early-model intake bolt pattern and perimeter-bolt valve covers, 87-up had the center intake bolts at a different angle and the center-bolt valve covers; and 89-back used a MAF, but 90-up was speed/density.
Make sure your heads have the accessory bolt holes in them. They are necessary for any of the accessory arrangements that must be used. The holes CANNOT be added to heads that don't have them.
TPI is all the same, with minor variations. It doesn't matter whether it came from a 305 or a 350. Only major difference is injector size. 350 injectors are probably more appropriate as is the 350 knock sensor.
There are a couple of year-model differences too; 86-back used the early-model intake bolt pattern and perimeter-bolt valve covers, 87-up had the center intake bolts at a different angle and the center-bolt valve covers; and 89-back used a MAF, but 90-up was speed/density.
Make sure your heads have the accessory bolt holes in them. They are necessary for any of the accessory arrangements that must be used. The holes CANNOT be added to heads that don't have them.
Joined: Mar 2000
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The block isn't the issue, except possibly mounting a starting for 153-tooth flywheel (may have to drill a hole).
It's the heads that matter. The only year that is a direct fit (and would work half-way decent) would be 1986. It will bolt to the heads (assuming the 327 heads are actually 1969 models), and the MAF TPI will handle the increased displacement over the 305 with few complaints.
The cam may cause the TPI some headaches, depending upon what it is. A stock cam won't, but the likelihood of a 1969 cam still being in good enough shape to run properly is pretty slim.
It's the heads that matter. The only year that is a direct fit (and would work half-way decent) would be 1986. It will bolt to the heads (assuming the 327 heads are actually 1969 models), and the MAF TPI will handle the increased displacement over the 305 with few complaints.
The cam may cause the TPI some headaches, depending upon what it is. A stock cam won't, but the likelihood of a 1969 cam still being in good enough shape to run properly is pretty slim.
Just did the swap in mine, it's 66 block and heads that have no acc bolt holes. I don't have a/c so it was a little easier, but I still had to weld up special brackets for power steering and alternator. The car does run a little rough at idle and every now and then won't fire, but I believe it's the tps, no major problems. On top of all that, the 327 is a "rev" motor--the power is at high rpms with little low end torque. This is a great combo for a camaro, IMO. Sure is fun to drive.
Joined: Mar 2000
Posts: 43,187
Likes: 45
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Originally posted by bobcatnn
On top of all that, the 327 is a "rev" motor--the power is at high rpms with little low end torque.
On top of all that, the 327 is a "rev" motor--the power is at high rpms with little low end torque.
To get a 327 to make as much power as a 350, you have to rev it higher. That doesn't make it a "rev" motor.
The first 327 I drove was in a neighbor's farm truck that weighed 20,000 lbs when loaded. It certainly didn't suffer from a lack of low end torque. It had a lot more torque, in fact, than the GMC truck of the same size that my dad had with a 305 V6, which had a longer stroke but would rev just as high as the 327. Or our '52 Chevy truck with a 261 straight six that wouldn't rev nearly as high.
Let's get off this thing about 327's and their need to "rev", okay? It's all about the "package", not some inherent limitation related to bore/stroke. With a proper cam and TPI, a 327 will be a "torque monster".
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