1324 AKA 1.3 most common sammy motor will have 1324 on block. I’ve seen differnces in these blocks in regards to casting desighns, Like the 1298 mentioned above, some (very few as I can tell) also were cast fro squirters and oild drainback provisions for a turbo, interstingly enough, the engines so built do not have an engine ID number machined into srface next to bell housing. One of these blocks would also be a good turbo build up.
1590 8valve sohc aka 1.6 engine found in kicks and tracks, g16kc is another name for it.
1590l 16v sohc aka 16v engine, kicks and tracks, g16kv is its other name.
rod diameter 1.6529-1.6535
main diam. 1.771-1.7716
pistons are a press fit pin.
Bell houseing pattern is same as 1298. 1590 engines can easily be adapted with trail tuff or similar adapter plate.
ITM lists the pistons the same as the 1298 engine but thats because the itm’s were machined for keeper grooves, neer as I can tell, 1298 are full floating pins where this engine, the 1324, has press fit pins.
rings however are catlogged as different numbers, I’ve never looked into why but I assume its related to ring size/desighn. This should not pose a problem as long as the pistons you buy include rings.
Flat top pistons are sourced from 3 cylinder 1000cc sprint engine. This yeild more compression. Remember you need 4. All thats required to put these psitons in are the pistons themselves. So don’t bother with the low compression pistons. I have also found the 1298 pistons will work and are flat tops as well, this seems to be the piston that hawk sells as a flat top piston. Also keep in mind that on the 1324 engine that the pin keepers are not needed as these (the 1324) engines use the press fit pins.
As the hi compression pistons will work I am looking into the con rods and psitons from the turbo sprint for a more robust forced induction bottom end. Does anyone know if the turbo sprint pistons were forged? same rod length as the sammy rod?
This would be helpful for a proper turbo build on a 8v
main bearings are the same as 1298
Rod bearings are same as 1298
camshafts will interchange between any of the 8v heads 1298, 1324, 1590. However I’ve always used the distributor houseing that belongs to the camshafts original motor as I have had end play issues when not doing this. So 1.3 cam will work in a 1.6 head as long as you use the 1.3 houseing. Some may have done this without a concern, I still recomend it.
Rocker arms are the same as 1298 up intill 95 where the disighn changed. They are also same as 1590.
Cam gears are the same as 1298 and 1590
cam bolts are same as well.
Timing belt is same as 89-94 1298
Timing belt tension is same as 89-94 1298 and 1590
Intake valves are same as 1298 90-97
exhaust valves are the same 1298 90-97 exhaust valves from 1590 will work with custom cyl head machineing.
Valve springs are same as 1298. 1590 valve springs will interchange and have more spring pressure. Be sure to check for coil stacking and proper pressures depending on the cam you are uesing. small block chevy springs for 1.6 installed height is the hot rod Hi rpm jones. I like 75-80#’s on the seat and around 225 open
Valve guids will interchange from 1298 ans 1590, however, depending on manufactrurer, length on guides may need modification.
Connecting rods will interchange with 1298 90-97 model years neer as I can tell at this point.
Balancers, still working on this, 1298 balancers will bolt on and have correct seal diameter, however the ones I’ve seen from a 1298 may or may not be setup for your belt drive. This goes for 1590 as well. The balancers will physically bolt on, but the differences lay in belt arangement.
Balancer bolts are same as 1298, 1590, and 1590l
Valve covers, interchangable from 1298 and 1590, almost all of them will bolt onto each other. If its an 8v head its a good bet. Late model 94? and up cars with 8v 1298 engines and 1324 engine used an aluminum cover that seals better and can be cleaned up easier. good yard find. VC gaskets are catalogged diferent depending on gasket manufacturer. Best bet is to get gasket for v.covers original car application
Cylinder head. will swap from 1298 strait across. Later model heads May or may not have fuel pump functionality. 1590 cylinder head will bolt on but does not have provision for fuel pump cast into it.
1300 dohc swift gti head will bolt on as well,with the gti bolts though I have never got that engine running to finish the notes on it. gti timing componants are also needed. As would the gti head gasket.
1590l head will bolt on too with the 1590l head bolts. I have bolted this combo together but have not yet run it or finished it. It APPEARS that with the 1324 (or 1298) cam gear on the 1590l cam that the 1324 (or 1298) timing belt would work. Again I don’t know that and it wouild take some tensioner work in any case.
Head gasket, 1298 will work fine, be sure to pay attention to the hole for oil feed to head. This is critical. 1590 gasket will work as well and is recomended (by me for what thats worth) for large overbores (.020 and up) and anytime a 1590 head is used on the 1324 or 1298 block.
Head bolts, use 1298 or 1590 bolts, 1590l bolts are different
Main bolts are same as 1298. Unknown if 1590 and 1590l bolts are same.
intake manifolds. 1298 manifolds, weather carbed or injected will bolt on fine. 1590 manifolds will work but is not recomended on 1324 head as head ports are smaller, if useing the 1590 head its better to port the 1324 or 1298 manifold to 1590 gasket size for intake oprts. Either way some porting will be necassary.
Intake manifold gaskets are same as 1298, 1590 are larger to accomodate larger ports. 1590 gasket can be used on 1298 and 1324 apps without leakage as the gasket is larger.
exhaust manifolds will interchange from 1298 and 1590 though there are desighn differences, but they will bolt on. 1590 manifold is more tubular in desighn with better cross section and longer “primary” this is most likely a performance improveing peice though I have never tested it. 1590 manifolds also seem crack prone.
Oil pans and pickups will interchange from 1298 and 1590 and 1590l engines, use the matching pair of pickup and pan. Non lifted apps need to be very carefull with pan to front housing clearence as 1590 pans are larger and may hit front axle during some conditions.
Oil pumps will interchange with 1590 and 1294 engines, also a 1.3 GTI oil pump will bolt to a 1298 and 1324 engine as well as 1590. (this is per SARGE, again thanx alot for the info)
Flywheels, 1298 wheels are same. 1590 engine swaps will use 1298 or 1324 wheel on 1590 engine for bellhouseing fit reasons.
Clutches are standard sammy clutches, though on Hi HP engines (don’t laugh I know its hard) I like the clutch that TNT diversified sells. Its a special disc with a specially sprung Pressure plate.
Flywheel bolts are same with 1298, 1590 and 1590l engines.
dISTRIBUTORS, 1298 and 1590 dist will fit, thing to remember is how you want run the engine management, Fuel injected engines will need correct dist. Not in scope right now to go into all that but just remember 1590 swaps will use factory carbed 1298 and 1324 mechanical/vacume distributors.
1590l 1.6 16valve engines that are run carburated (custom carb setup) will also use the 1.3 mechanical distrubutor for ignition controll if the proper modification to distributor shaft end and disributor hold down slot are made. This is a really easy way to run indv. carbs on a 16v if you want the hotrod motor without the injection. I will cover this later as there are some differences that need to be over come due to dist rotation.
Oil pumps, 1298 will work as will1590. There may be some small differnces in bypass and pressure, but they will bolt on and run and give adequate oil pressure.
1324 torque specs
Headbolts 50 ft#
main bolts 40ft#
cam gear 45ft#
crank bolt 50ft#
con rod 26ft#
This engine (the 1324) most likel;y what came in your sammy, they are a good engine with few problems. Most need a good rebuild by know. Blocks are tough and will not hardly ever ridge, so a quick and easy bottle hone, rings, bearings and valve job with seals will probably fix all you concers. Heads have a tendancy to burn valves.
COMPRESSION RATIO INFORMATION
STOCK 1.3 cylinder head volume = 33cc
Stock 1.3 “dished piston” volume = 3.8cc
1.3 “flat top” piston volume (the valve nothes) = 1.5cc
Stock 1.6 head volume = 32cc
Deck clearance = .010
I checked this on 2 different blocks, its varied a bit, so I averaged them at .010. If anyone wants to check deck at tdc on another stock 1.3 and compare, it would help.
Looking at the information above I finally realized something that I had missed in the passed. The 1.6 cylinder head combustion chamber is the same size, or smaller than the 1.3. In the past, I had always just cut the heads until I ended up with the volume I was looking for. I had never cc’s a totally stock 1.6. Interesting yeah? I kinda feel like I missed the boat on that one all this time. So now there is 0 reason really to not run the 1.6 head. The fuel pump is the only thing that could be argued, but its a week one in my opinion.
So compression ratios:
Stock head stock 1.6 head gasket. Factory replacement dished pistons.
stock bore 8.6-1
.030 over pistons= 8.8
.060 pistons = 8.98
Flat top pistons
stock bore 9.1
Cutting block down to arrive at 0 deck using the flat top pistons.
stock bore 9.2
Cutting .010 from the cylinder head yields about .2’s more compression ratio on a stock bore.