diff --git a/infra/testing/client.v8.pyl b/infra/testing/client.v8.pyl
index fe858527c9..0690820abe 100644
--- a/infra/testing/client.v8.pyl
+++ b/infra/testing/client.v8.pyl
@@ -16,6 +16,16 @@
   ],
   'V8 Linux64 - debug': [
     {'name': 'v8testing', 'variant': 'minor_mc', 'shards': 1},
+    {'name': 'v8testing', 'variant': 'slow_path', 'shards': 1},
+  ],
+  'V8 Linux - gc stress': [
+    {'name': 'mjsunit', 'variant': 'slow_path', 'shards': 2},
+  ],
+  'V8 Linux64 ASAN': [
+    {'name': 'v8testing', 'variant': 'slow_path', 'shards': 1},
+  ],
+  'V8 Linux64 TSAN': [
+    {'name': 'v8testing', 'variant': 'slow_path', 'shards': 1},
   ],
   'V8 Linux64 - fyi': [
     {'name': 'v8testing', 'variant': 'infra_staging', 'shards': 1},
@@ -23,4 +33,4 @@
   'V8 Linux64 - debug - fyi': [
     {'name': 'v8testing', 'variant': 'infra_staging', 'shards': 2},
   ],
-}
\ No newline at end of file
+}
diff --git a/infra/testing/tryserver.v8.pyl b/infra/testing/tryserver.v8.pyl
index cbd28a60ca..b00c36e34a 100644
--- a/infra/testing/tryserver.v8.pyl
+++ b/infra/testing/tryserver.v8.pyl
@@ -13,5 +13,15 @@
   ],
   'v8_linux64_rel_ng_triggered': [
     {'name': 'v8testing', 'variant': 'minor_mc', 'shards': 1},
+    {'name': 'v8testing', 'variant': 'slow_path', 'shards': 1},
   ],
-}
\ No newline at end of file
+  'v8_linux_gc_stress_dbg': [
+    {'name': 'mjsunit', 'variant': 'slow_path', 'shards': 2},
+  ],
+  'v8_linux64_asan_rel_ng_triggered': [
+    {'name': 'v8testing', 'variant': 'slow_path', 'shards': 1},
+  ],
+  'v8_linux64_tsan_rel': [
+    {'name': 'v8testing', 'variant': 'slow_path', 'shards': 1},
+  ],
+}
diff --git a/test/mjsunit/mjsunit.status b/test/mjsunit/mjsunit.status
index 5902e7e2f5..0b25475ffc 100644
--- a/test/mjsunit/mjsunit.status
+++ b/test/mjsunit/mjsunit.status
@@ -759,4 +759,11 @@
   'wasm/default-liftoff-setting': [SKIP],
 }], # variant == liftoff
 
+##############################################################################
+['variant == slow_path and gc_stress', {
+  # Slow tests.
+  'regress/regress-crbug-493779': [SKIP],
+  'string-replace-gc': [SKIP],
+}],  # variant == slow_path
+
 ]
diff --git a/tools/testrunner/local/variants.py b/tools/testrunner/local/variants.py
index 6b127e9080..7af8aba894 100644
--- a/tools/testrunner/local/variants.py
+++ b/tools/testrunner/local/variants.py
@@ -8,6 +8,7 @@ ALL_VARIANT_FLAGS = {
   "future": [["--future"]],
   "liftoff": [["--liftoff"]],
   "minor_mc": [["--minor-mc"]],
+  "slow_path": [["--force-slow-path"]],
   "stress": [["--stress-opt", "--always-opt"]],
   # TODO(6792): Write protected code has been temporary added to the below
   # variant until the feature has been enabled (or staged) by default.