diff --git a/stablehlo/testdata/BUILD.bazel b/stablehlo/testdata/BUILD.bazel
index c2c54a80480..5340d4389fe 100644
--- a/stablehlo/testdata/BUILD.bazel
+++ b/stablehlo/testdata/BUILD.bazel
@@ -55,7 +55,29 @@ RUNFILES_DIR = LITE_CFG_PY.parents[2].absolute().as_posix()''',
         tags = ["stablehlo_testdata_tests"],
         deps = ["@rules_python//python/runfiles"],
     )
-    for src in glob(["**/*.mlir"])
+    for src in glob(
+        ["**/*.mlir"],
+        exclude = ["**/*.large.mlir"],
+    )
+]
+
+# Give large tests more RAM / timeout
+[
+    lit_test(
+        name = "%s.test" % src,
+        size = "large",
+        srcs = [src],
+        data = [
+            "lit.cfg.py",
+            "lit.site.cfg.py",
+            "//:stablehlo-opt",
+            "//:stablehlo-translate",
+            "@llvm-project//llvm:FileCheck",
+        ],
+        tags = ["stablehlo_testdata_tests"],
+        deps = ["@rules_python//python/runfiles"],
+    )
+    for src in glob(["**/*.large.mlir"])
 ]
 
 test_suite(
diff --git a/stablehlo/testdata/igamma_float64_20_20_float64_20_20_chlo.mlir b/stablehlo/testdata/igamma_float64_20_20_float64_20_20_chlo.large.mlir
similarity index 99%
rename from stablehlo/testdata/igamma_float64_20_20_float64_20_20_chlo.mlir
rename to stablehlo/testdata/igamma_float64_20_20_float64_20_20_chlo.large.mlir
index 7d19428fddd..767a62d047c 100644
--- a/stablehlo/testdata/igamma_float64_20_20_float64_20_20_chlo.mlir
+++ b/stablehlo/testdata/igamma_float64_20_20_float64_20_20_chlo.large.mlir
@@ -1,4 +1,4 @@
-// RUN-DISABLED(#2590, timeout): stablehlo-opt --chlo-pre-serialization-pipeline -inline %s | stablehlo-translate --interpret
+// RUN: stablehlo-opt --chlo-pre-serialization-pipeline -inline %s | stablehlo-translate --interpret
 // RUN: stablehlo-opt --chlo-pre-serialization-pipeline %s | stablehlo-translate --serialize --target=current | stablehlo-translate --deserialize | stablehlo-opt > %t.0
 // RUN: stablehlo-opt --chlo-pre-serialization-pipeline %s > %t.1
 // RUN: diff %t.0 %t.1
diff --git a/stablehlo/testdata/igammac_float64_20_20_float64_20_20_chlo.mlir b/stablehlo/testdata/igammac_float64_20_20_float64_20_20_chlo.large.mlir
similarity index 99%
rename from stablehlo/testdata/igammac_float64_20_20_float64_20_20_chlo.mlir
rename to stablehlo/testdata/igammac_float64_20_20_float64_20_20_chlo.large.mlir
index 42d097dc18f..03e60172d75 100644
--- a/stablehlo/testdata/igammac_float64_20_20_float64_20_20_chlo.mlir
+++ b/stablehlo/testdata/igammac_float64_20_20_float64_20_20_chlo.large.mlir
@@ -1,4 +1,4 @@
-// RUN-DISABLED(#2590, timeout): stablehlo-opt --chlo-pre-serialization-pipeline -inline %s | stablehlo-translate --interpret
+// RUN: stablehlo-opt --chlo-pre-serialization-pipeline -inline %s | stablehlo-translate --interpret
 // RUN: stablehlo-opt --chlo-pre-serialization-pipeline %s | stablehlo-translate --serialize --target=current | stablehlo-translate --deserialize | stablehlo-opt > %t.0
 // RUN: stablehlo-opt --chlo-pre-serialization-pipeline %s > %t.1
 // RUN: diff %t.0 %t.1
diff --git a/stablehlo/testdata/quantized/conv_general_dilated_tf_conversion_path_3d_lhs_float32_1_4_28_28_1__rhs_float32_2_3_3_1_16__windowst-8282934958224398022_qi8.mlir b/stablehlo/testdata/quantized/conv_general_dilated_tf_conversion_path_3d_lhs_float32_1_4_28_28_1__rhs_float32_2_3_3_1_16__windowst-8282934958224398022_qi8.large.mlir
similarity index 100%
rename from stablehlo/testdata/quantized/conv_general_dilated_tf_conversion_path_3d_lhs_float32_1_4_28_28_1__rhs_float32_2_3_3_1_16__windowst-8282934958224398022_qi8.mlir
rename to stablehlo/testdata/quantized/conv_general_dilated_tf_conversion_path_3d_lhs_float32_1_4_28_28_1__rhs_float32_2_3_3_1_16__windowst-8282934958224398022_qi8.large.mlir
diff --git a/stablehlo/testdata/quantized/conv_general_dilated_tf_conversion_path_3d_lhs_float32_1_4_28_28_1__rhs_float32_2_3_3_1_16__windowst8524424959485066052_qi8.mlir b/stablehlo/testdata/quantized/conv_general_dilated_tf_conversion_path_3d_lhs_float32_1_4_28_28_1__rhs_float32_2_3_3_1_16__windowst8524424959485066052_qi8.large.mlir
similarity index 100%
rename from stablehlo/testdata/quantized/conv_general_dilated_tf_conversion_path_3d_lhs_float32_1_4_28_28_1__rhs_float32_2_3_3_1_16__windowst8524424959485066052_qi8.mlir
rename to stablehlo/testdata/quantized/conv_general_dilated_tf_conversion_path_3d_lhs_float32_1_4_28_28_1__rhs_float32_2_3_3_1_16__windowst8524424959485066052_qi8.large.mlir